Thailand has become one of the most popular destinations for regenerative treatments, and cell-based therapies are a growing part of that picture. Popularity, however, does not automatically mean safety. The quality gap between providers is wide, and the standards that shape patient outcomes vary considerably from clinic to clinic.

What Is Stem Cell Therapy

Stem cells are cells with the ability to develop into different types of specialized cells, which is what sets them apart from ordinary body cells with fixed functions. Stem cell therapy uses these properties in medicine to support tissue repair or influence how surrounding cells behave. The term covers a wide range of applications, from established treatments for blood cancers to newer aesthetic and orthopedic uses, and evidence levels vary significantly across those applications.

Why People Choose Thailand for Stem Cell Therapy

Thailand’s medical infrastructure, lower treatment costs compared to Western countries, and established reputation for medical tourism make it a common destination for patients exploring regenerative options. For patients considering stem cell therapy in Bangkok and other major cities, many hospitals and private clinics operate at internationally accredited standards, with English-speaking physicians and dedicated support for international patients. The city’s medical tourism infrastructure also includes patient coordinators and structured follow-up options for patients travelling from abroad.

The range in quality is significant, however. Whether Thailand is good for stem cell therapy  depends almost entirely on which provider a patient chooses.

What Are the Actual Risks

No medical treatment is entirely risk-free, and cell-based therapies are no exception. If you are wondering are there any risks of using stem cells, the answer is yes, in every protocol. The most commonly reported concerns include:

• Infection at the injection or treatment site
• Unwanted immune reactions to administered cells
• Unpredictable cell behavior, meaning that cells may not integrate, activate, or perform as the protocol intends
• Delayed or reduced response when patient suitability has not been properly assessed

Risk increases significantly when clinical standards are inadequate. This includes uncontrolled cell sourcing and processing, treatment delivered outside of standardized protocols, and skipping suitability assessment before therapy begins. Most cell-based therapies for aesthetic or anti-aging purposes have not received formal regulatory approval from major bodies such as the US FDA. This does not mean every treatment is unsafe, but it does mean the burden of evaluating safety sits more heavily with the patient and the clinic they choose. Ultimately, whether stem cell therapy is safe in Thailand comes down to the specific clinic, not the country.

How to Evaluate a Provider in Thailand

Not all clinics offering cell-based therapies operate to the same standard. A few practical checks help separate proper regenerative practice from marketing-led facilities:

• The clinic clearly explains what cell source is being used, where it comes from, and how it is processed
• Treatment is supervised by a licensed physician, not delegated entirely to non-medical staff
• The provider discusses realistic outcomes and potential risks openly, not only the benefits
• Patient records, follow-up protocols, and proper informed consent are standard practice
• A structured follow-up schedule is part of the plan from the start, not an afterthought

Warning signs include clinics that guarantee specific results, promote treatments as a cure-all for unrelated conditions, or fail to provide clear answers about cell sourcing and compliance. A facility unwilling to discuss why a particular patient might not be a candidate reveals a great deal about its internal standards. Transparency on these points is not a marketing preference, but the essential foundation for informed consent.

Beyond these initial conversations, verifying a clinic’s medical license and the credentials of its treating physicians is a crucial step before booking. Understanding what standard clinical practice looks like ultimately equips patients to ask the right questions and evaluate potential providers with confidence.

What Treatment Actually Involves

Treatment protocols vary. Some involve harvesting cells from the patient’s own tissue, processing them under sterile conditions, and reintroducing them to the target area. Others use donor-sourced or cell-derived products such as growth factor preparations. Delivery methods range from injection to topical application combined with microneedling, depending on the protocol and the area being treated.

Recovery is typically mild for most protocols, with some redness, swelling, or tenderness at the treatment site that generally settles within the first few days. Visible results are not immediate. Most patients notice changes gradually over weeks to months, and some protocols require more than one session to complete a full course. The number of sessions depends on the protocol, the tissue being treated, and how the individual patient responds during early follow-up. Some protocols are delivered in a single session; others involve two or three sessions spaced weeks apart.

Not everyone is a suitable candidate. Age, existing medical conditions, current medications, immune status, and the specific condition being treated all influence whether a regenerative approach is appropriate. Certain autoimmune conditions, active infections, or specific medication regimens may rule out a given protocol until those factors are addressed or stabilized under medical care. In some cases, a course of pre-treatment blood work or specialist review is required before candidacy can be confirmed.

Regenerative Care Grounded in Clinical Standards

At Vega Dermatology & Wound Care Unit in Bangkok, cell-based therapies are offered within a broader practice that combines dermatology, wound care, and regenerative medicine. This means the treating team understands not just the protocol itself but the underlying tissue biology, healing dynamics, and skin or vascular conditions that shape how it performs on the individual patient.

Protocols at the Vega Stem Cell Clinic draw on this combined expertise, with treatment planning shaped by the individual case rather than a fixed menu. The approach centers on proper assessment, a transparent process, and an honest outcome discussion. Whether stem cell therapy is safe in Thailand for a given patient depends less on the country and more on choosing a clinic that treats these standards as the baseline.

Suitability for regenerative treatment is decided case by case. Book a consultation today with the clinical team at Vega Dermatology & Wound Care Unit to review yours.

References:

• A Comprehensive Analysis of Reported Adverse Events in Patients Receiving Unproven Stem Cell-Based Interventions. Retrieved 26 August 2026, from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6127222/ 
• Safety of Cell Therapy with Mesenchymal Stromal Cells (SafeCell): A Systematic Review and Meta-Analysis of Clinical Trials. Retrieved 26 August 2026, from https://pmc.ncbi.nlm.nih.gov/articles/PMC3485008/

Scars from acne may linger after breakouts subside, particularly if the inflammation reaches deeper skin layers. Many patients find topical treatments, creams, and serums insufficient for underlying structural damage.

Because of this deeper structural damage, regenerative options like stem cell therapy have become a solution for noticeable, long-term acne scar reduction.

Even though regenerative treatments may help improve scar appearance, texture, and tissue quality, they are not a guaranteed way to erase scarring completely. 

What Are Acne Scars and Why Are They Hard to Treat?

Acne scars form when inflammation damages the skin’s normal healing process and the underlying collagen structure, producing two broad scar categories:

• Atrophic (depressed) scars: rolling, boxcar, and icepick types, caused by a loss of collagen
• Raised scars: hypertrophic or keloidal, caused by an overproduction of collagen during healing

Unlike acne marks, which are flat, temporary discolorations that often resolve with topical treatments alone. Dermal structural alteration defines true scars.

Infographic alt tag: Stem Cell Therapy for Acne Scars.

What Is Stem Cell Therapy for Acne Scars?

Stem cell therapy for acne scars is part of the broader field of regenerative medicine. Studies are exploring cell-based and cell-derived methods for their capacity to aid tissue repair, boost collagen synthesis, and manage inflammation, encompassing the following.

• Mesenchymal stem cell-conditioned media: the nutrient fluid cells are grown in, carrying growth factors and signaling proteins.
• Stromal vascular fraction (SVF): a mixed cell population isolated from a person’s own fat tissue, used as a source of regenerative cells.
• Exosomes: tiny vesicles that carry signaling molecules between cells and may influence skin repair.

Research suggests the proposed benefit may come largely from paracrine signaling, a process where stem cells release growth factors that prompt your body’s fibroblasts to produce new collagen and improve micro-blood circulation. This supports the collagen production that gradually improves a scar’s depth and texture.

Beyond this, evidence also points to combining regenerative therapy with existing resurfacing procedures. A 12-week randomized split-face trial found that adding adipose-derived exosomes after fractional CO2 laser reduced acne scar severity scores by 32.5%, compared with 19.9% for laser alone, with milder redness and shorter downtime on the exosome-treated side.

How Is Stem Cell Therapy for Acne Scars Different?

Conventional procedures such as subcision, microneedling RF (radiofrequency-assisted microneedling), and laser resurfacing work by creating controlled injury that triggers the skin’s own repair response or by physically releasing the fibrous bands that tether rolling scars. 

Regenerative methods, in the interim, focus on aiding the body’s natural healing. To achieve optimal outcomes, doctors often use these two treatments together because one treatment alone may not resolve all scars.

Is Stem Cell Therapy for Acne Scars Suitable for You?

Current evidence and treatment implications vary by scar category:

• Atrophic scars (rolling, boxcar, icepick): the most studied scar category for regenerative support, where collagen loss creates a depressed texture. Rolling and boxcar scars respond most naturally within a combination plan, while deeper icepick scars are harder to treat and often need TCA CROSS (a targeted chemical treatment for narrow, deep scars) or focused laser work.
• Raised scars (hypertrophic, keloid): raised tissue where injection-based protocols and lasers are typically the primary approach, with regenerative support playing a smaller, adjunct role.

What to Expect After Treatment

Initial Changes

• Mild redness, swelling, or tenderness at the treatment site, usually resolving within a few days.
• Skin may appear temporarily smoother or more hydrated shortly after a session.

Gradual Changes

• Texture may become progressively smoother as collagen remodels over several weeks.
• Scar depth may improve with continued sessions.

Note: Results build gradually over multiple sessions. Outcomes vary depending on scar type, severity, skin characteristics, and whether regenerative therapy is combined with other treatments.

Is Stem Cell Therapy for Acne Scars Safe?

Regenerative treatment for acne scars is not entirely risk-free. Safety depends on medical assessment and the specific procedure used. Reported effects are generally temporary and may include:

• Redness
• Swelling
• Transient bruising
• Short-term pigment changes, particularly in darker skin tones if device settings and aftercare are not adjusted appropriately

As “stem cell therapy” can refer to different technologies and protocols, a proper consultation is important. Ensure your doctor explains the specific treatment, the evidence that supports it, and realistic outcomes for different scar types and skin tones. Your doctor may also recommend the number of sessions required for you to see meaningful improvement, as it may require more than one session.

Stem Cell Therapy for Acne Scars at Vega Dermatology & Wound Care Unit

Stem cell therapy for acne scars is a promising option for patients dealing with the lasting effects of past breakouts, with the strongest evidence so far in atrophic scars such as rolling and boxcar types. The evidence base for raised keloid and hypertrophic scars is still developing, and results depend on individual factors, so the treatment is best used as part of a broader regenerative program guided by an experienced physician rather than on its own.

At Vega stem cell clinic in Bangkok, every program starts with a comprehensive evaluation of your scar type, depth, and skin condition. From there, our physician builds a plan suited to your skin, combining regenerative support with options such as subcision, microneedling RF, or laser resurfacing where appropriate. Care is overseen by Dr. Ekkaparb Charoensuk, an integrative and regenerative medicine physician with more than 15 years of clinical experience.

Book a consultation with our clinical team at Vega Dermatology & Wound Care Unit for a scar care assessment to find out which combination of treatments suits your skin.

References:

• Regenerative Medicine for Atrophic Scars: A Systematic Review of Extracellular Vesicles, Conditioned Media, Stromal Vascular Fraction, and Mesenchymal Stem Cells. Retrieved August 18, 2026, from https://pubmed.ncbi.nlm.nih.gov/41099835/
• Combination Treatment with Human Adipose Tissue Stem Cell-derived Exosomes and Fractional CO2 Laser for Acne Scars: A 12-week Prospective, Double-blind, Randomized, Split-face Study. Retrieved August 18, 2026, from https://pubmed.ncbi.nlm.nih.gov/33073298/
• Therapeutic Value of Mesenchymal Stem Cell-Derived Extracellular Vesicles in Hypertrophic and Keloid Scars: A Systematic Review and Meta-Analysis. Retrieved August 18, 2026, from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12891142/
• The Efficacy of MSC-Derived Exosome-Based Therapies in Treating Scars, Aging and Hyperpigmentation: A Systematic Review of Human Clinical Outcomes. Retrieved August 18, 2026, from https://www.mdpi.com/2571-841X/8/4/268

The gap between what is being promised and what stem cell therapy for skin rejuvenation can realistically do is worth understanding before booking anything. There’s been a rapid increase in interest regarding regenerative methods for skin aging, with cell-based therapies being a particularly popular search topic. However, the term is used loosely, and not all treatments marketed under it actually deliver on their promises.

How Cell-Based Skin Rejuvenation Works

A common question patients ask is whether stem cells can rejuvenate skin, and the answer depends on what is actually being delivered. Cell-based therapy for skin rejuvenation uses cells or cell-derived products to support the skin’s own repair and renewal processes. The benefit comes primarily from signaling molecules that may encourage the body to produce more collagen and elastin, rather than from injected cells directly replacing damaged skin. Certain methods involve using cells obtained from the patient’s own body. Other approaches utilize materials from donors, while some opt for cell-derived products like secretome or conditioned media instead of the cells themselves. The origin, how it’s processed, and how it’s delivered all impact a patient’s potential results.

This kind of therapy is frequently mistaken for PRP, which isolates growth factors from a patient’s blood, or microneedling, which employs deliberate micro-injuries to stimulate a superficial healing reaction. Although both can supplement cell-based treatments, they function in distinct ways and address different levels of the skin. Recognizing these differences allows patients to determine the most suitable treatment, or blend of treatments, for their specific circumstances.

Realistic Results and Common Misconceptions

Whether cell-based therapy can genuinely rejuvenate skin comes down to expectations. Some patients see gradual improvements in texture, tone, and fine lines over weeks to months, while others see more modest changes depending on skin condition, age, and the protocol used. The benefits are most established in wound healing and scar remodeling, where growth factors and signaling molecules have a clearer role in supporting tissue repair. Aesthetic skin rejuvenation is a newer and still evolving application, and the realistic expectation is gradual visible improvement rather than a dramatic overnight transformation.

Some marketing suggests that you can reverse aging with stem cells entirely, but this overstates what current therapies can achieve. Cell-based approaches may improve visible signs of aging, including fine lines, uneven texture, and loss of elasticity, but they do not reverse the aging process itself. Skin aging is driven by sun exposure, collagen breakdown, volume loss, and gravity working together over time, and cell-based therapy may support one part of that picture, but no single treatment addresses all of it. Patients who understand this distinction tend to have a more productive experience and more realistic satisfaction with their results.

What to Ask Before Booking Treatment

No cell-based product is currently approved by major regulatory bodies specifically for cosmetic skin use, which means patients need to evaluate providers carefully. Before booking any treatment, it is worth asking the following:

• What cell source is being used, and how is it processed?
• Is the treatment compliant with local regulatory standards?
• What are the expected outcomes and timeline for visible change?
• What evidence supports the claims being made?

Red flags include guaranteed results, treatment framed as a literal reversal of aging, vague language about what is being administered, pricing that seems unusually low for the complexity of the treatment, or unclear regulatory compliance. A physician-led program with transparent protocols, clearly defined cell sources, and honest outcome guidance is the safest foundation for any regenerative skin treatment.

Comparing Cell-Based Therapy to Other Options

Cell-based therapy is one option among several for improving skin quality, and each suits different concerns, budgets, and comfort levels. These options are not always competing, and some patients combine two or more as part of a staged treatment plan depending on what their skin needs most.

Cell-based therapy tends to suit patients with early to moderate skin aging or scarring who want a regenerative approach, or those whose skin has not responded well to standard treatments. Patients with very mild concerns may find topical products or microneedling sufficient on their own, while those wanting faster visible change may find laser resurfacing more appropriate. Anyone with active skin infections or autoimmune conditions affecting the skin should be evaluated by a physician before starting any regenerative protocol.

No single treatment is the right fit for every patient, and what works well for one person’s skin may produce limited results for another. For patients exploring stem cell therapy in Bangkok or considering any regenerative option, the most productive starting point is understanding which of these approaches targets the specific concern rather than defaulting to the most popular or most marketed one.

Regenerative Skin Care at Vega Dermatology & Wound Care Unit

Stem cell therapy for skin rejuvenation is an evolving field in regenerative medicine. What matters most is partnering with a clinical team that evaluates your skin thoroughly, sets realistic expectations, and creates a tailored plan based on your unique needs rather than a one-size-fits-all protocol. Ultimately, achieving a rewarding result comes down to provider transparency and assessment quality.

At Vega, a dedicated stem cell clinic in Bangkok, regenerative skin treatments are delivered through a structured, physician-led program. The clinical team evaluates your skin condition, treatment history, and personal goals before recommending a path forward. For targeted texture renewal, stem cell therapy for acne scars in Bangkok is often integrated into a broader scar remodeling strategy that combines multiple modalities. 

Book a consultation today at Vega Dermatology & Wound Care Unit for a comprehensive skin assessment and discover if a regenerative approach is right for you.

References:

• Applications of Mesenchymal Stem Cells in Skin Regeneration and Rejuvenation. Retrieved 19 August 2026, from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7957487/ 
• Umbilical cord‐derived mesenchymal stem cell secretome promotes skin regeneration and rejuvenation: From mechanism to therapeutics. Retrieved 19 August 2026, from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10984109/ 
• Insights Into the Role of Mesenchymal Stem Cells in Cutaneous Medical AestheticsInsights into the role of mesenchymal stem cells in cutaneous medical aesthetics: from basics to clinics. Retrieved 19 August 2026, from https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11184751/

Stem cell supplements sound like a clinical treatment in a bottle. Instead, they are health supplements marketed similarly to vitamins. Their components include vitamin D3, antioxidants, extracts from algae and berries, and colostrum. While no lab-grown cells are used, the name suggests a process akin to medical treatment.

Providing general nutritional support, which a healthy diet can also offer, is one aspect. Administering regenerative therapy directly to targeted tissue by a physician is another option. The following details what these supplements contain, the current evidence supporting them, and how they compare to medically supervised therapy.

What Stem Cell Supplements Actually Contain

Stem cell supplements are dietary products regulated as supplements rather than medical treatments. They are sold online and in stores like any vitamin, and they do not contain live cells despite the name. 

Common ingredients include antioxidants, plant and algae extracts, vitamin D3, vitamin C, enzymes, and colostrum. Some products market themselves under the broader stem cell nutrition category, while others are labeled as a cell regeneration supplement or stem cell regeneration supplements.

The marketing claim is usually that the ingredients “support stem cell activity” in the body. What is actually measurable in a bottle is the vitamin and antioxidant content, not any direct effect on stem cells themselves. That distinction is where most patient confusion begins.

Do Stem Cell Supplements Actually Work?

Research on specific nutrients and general cellular health is real, but it is early stage and largely indirect. Vitamin D3 has established links to immune function and bone health. Omega-3 fatty acids may reduce inflammation. Antioxidants help neutralize oxidative stress that contributes to cellular aging. These are documented general benefits.

However, direct clinical proof that an over-the-counter stem cell supplement leads to measurable increases in stem cell activity in humans is a different matter. Rigorous randomized human trials testing these products specifically are largely absent from the peer-reviewed literature. Correlation between nutrient status and cellular health is not the same as proof that a supplement drives regeneration. 

Treating early research as settled evidence is where marketing outpaces what the science actually shows.

Supplements vs. Clinically Administered Regenerative Care

Supplements act indirectly through general nutrition. They travel through the digestive tract, get metabolized, and reach tissues throughout the body in whatever concentration the body decides. There is no way to target a specific site, condition, or wound with an oral supplement.

Physician-delivered regenerative therapy works differently, where concentrated bio-active signaling molecules are applied directly to the tissue of concern under medical assessment and supervision. The dose, delivery, and timing are controlled clinically rather than left to the digestive system. 

Between supplements and clinically-administered care, the two approaches are not interchangeable: one is general wellness support that any healthy diet also provides, and the other is a targeted medical protocol built around a specific clinical finding.

Choosing Supplements Responsibly

For readers who still want to take a cell regeneration supplements product, a few transparency markers make for credible options worth considering. 

• Look for clearly listed doses per serving rather than “proprietary blends” that hide the amounts.
• Named ingredients with disclosed sourcing carry more weight than generic descriptors.
• Third-party testing seals from independent laboratories indicate that what is on the label matches what is in the bottle.

Still, you shouldn’t use supplements instead of seeing a doctor, especially if you’re already on prescription drugs. Certain ingredients may interfere with blood thinners, hormone treatments, or other frequently used medications. It’s advisable to have a pharmacist or doctor check it before you begin anything new.

Vega Dermatology & Wound Care Unit’s Regenerative Approach

At Vega Dermatology & Wound Care Unit in Bangkok, we take a physician-led and site-specific approach to regenerative care. Bio-active signaling and VEGF and PDGF Ultra Enhanced Media are delivered directly to the tissue that needs support, whether that is a stalled wound, a thinning scalp, or an atrophic scar. We match our treatments to a clinical finding from consultation.

Our clinic is part of the broader Vega Stem Cell Clinic regenerative-medicine group, and protocols are applied across hair, wound, and scar programs under one medical team. English-speaking support is available throughout treatment for international patients, and we track your progress with objective measurement for a well-informed approach.

Choose Targeted Clinical Care Over Marketing Claims

Stem cell supplements are nutritional products built from common ingredients like vitamin D3, antioxidants, and colostrum. They are not lab-processed cells, and current evidence supports general cellular health benefits rather than a proven ability to boost stem cell activity on their own. For anyone considering them, these products should be treated as separate from medical treatments.

For a structured clinical approach, Vega Dermatology & Wound Care Unit delivers regenerative care as a targeted, physician-supervised protocol. Bio-active signaling and VEGF and PDGF media are applied directly to hair, wound, or scar concerns under proper clinical assessment.

CD90, also known as Thy-1, is a small protein anchored to the outside of cells. It was first identified decades ago during research on thymus cells and has since been found on a wide range of cell types across the body. In regenerative medicine, the CD90 marker is best known as one of the markers used to characterize mesenchymal stromal cells (MSCs), the cell type most commonly referenced in cell therapy and tissue repair research.

CD90 is important for patients seeking regenerative treatments, as it’s a term used to explain how they confirm the cells in their treatments. Knowing what it conveys and what it omits aids in formulating superior inquiries.

What Is CD90 and How Does It Work?

A cell-surface marker is a protein sitting on the outside of a cell that researchers can detect using laboratory techniques such as flow cytometry (a method that sorts and counts cells by their surface proteins) or immunostaining. CD90 is a cell-surface protein, specifically a GPI-anchored glycoprotein, meaning it attaches to the outer wall of the cell using a small lipid anchor rather than passing through it. Because it sits on the surface, laboratory technicians can identify and sort these live cells without destroying them. It plays roles in cell-to-cell communication, adhesion, and signaling, though its full range of functions is still being studied.

How CD90 Is Used to Identify Different Cell Types

CD90 appears across many cell types. The main populations that express it include:

• Mesenchymal stromal cells: a widely referenced standard from the International Society for Cellular Therapy (ISCT), the professional body that sets criteria for defining these cells, lists CD90 as one of three positive markers, alongside CD73 and CD105, that at least 95% of human MSCs should express. CD90 is part of a panel, not a standalone identifier.
• Fibroblasts: the cells that produce collagen and maintain connective tissue also express CD90, which is a key reason the marker alone cannot confirm a cell’s identity.
• Bone marrow cells: CD90-positive populations here include both stromal cells and hematopoietic progenitors (the progenitor cells responsible for forming blood cells), so additional markers are needed to tell them apart.
• Other cell types: CD90 has also been detected on neurons and activated endothelial cells, certain thymocytes, and some cancer cells.

Why CD90 Cannot Identify a Cell on Its Own

Marker expression and biological function are two different things. A cell expressing CD90 has that protein on its surface, but that does not automatically mean it can differentiate into bone, cartilage, or fat, or release therapeutic signaling molecules. Context matters too: the tissue source and culture conditions affect how CD90 expression should be interpreted. Rigorous characterization uses a full marker panel plus functional testing, not a single surface protein.

What CD90 Tells You About a Regenerative Treatment

When a clinic points to CD90 to describe its cells, that data confirms the cells carry a surface protein and little more. It helps to know what a marker can and cannot establish:

What CD90 can tell you:

• A cell carries the CD90 surface protein, detectable by flow cytometry and similar lab methods.
• Combined with CD73 and CD105, the cells meet the ISCT panel used to define MSCs.

What CD90 cannot tell you:

• Whether the cells are alive, active, or will behave as intended once administered.
• Whether the treatment has been studied for your specific condition.
• That marker-positive equals clinically effective, since a marker describes what cells are, not what a treatment achieves.

Evidence for a clinical benefit comes from published research and trial data on the condition being treated. When exploring stem cell therapy Bangkok options, it is reasonable to ask a provider to separate the two: what the cells are, and what the evidence shows they can do.

What to Ask When Exploring Cell Therapy in Bangkok

To make an informed decision about regenerative treatment, you need to know about the cells involved. When speaking with a provider, consider asking:

• What type of cells are used? Whether the treatment uses live cells, cell-derived products such as conditioned media or exosomes, growth factors, or another approach
• How are the cells characterized? A provider should be able to explain which markers they test for and what quality controls are in place
• What evidence supports this for my condition? Ask about published research, clinical trial data, and realistic expected outcomes
• Is a medical assessment performed first? A proper evaluation should happen before any regenerative therapy is recommended

Explore Stem Cell Therapy at Vega Dermatology & Wound Care Unit

CD90 is a useful research tool, but it is one marker among several and cannot, on its own, confirm what a cell will do or how a treatment will perform. The effectiveness of cell-based treatments is still being researched and differs depending on the illness. This is why a truthful healthcare provider will clarify the treatment’s procedures and limitations. Clarity is more important than any specific laboratory term.

At Vega stem cell clinic in Bangkok, regenerative treatments are delivered through a physician-led framework covering wound care, skin repair, hair restoration, and scar remodeling. Assessment with our qualified physicians determines whether a regenerative approach is appropriate for your condition and what it would involve. Care is overseen by Dr. Ekkaparb Charoensuk, an integrative and regenerative medicine physician with more than 15 years of clinical experience.

Book a consultation with our clinical team for an assessment of your condition and to explore stem cell therapy in Bangkok.

References:

• Minimal Criteria for Defining Multipotent Mesenchymal Stromal Cells. The International Society for Cellular Therapy Position Statement. Retrieved August 18, 2026, from https://pubmed.ncbi.nlm.nih.gov/16923606/
• CD90/Thy-1, a Cancer-Associated Cell Surface Signaling Molecule. Retrieved August 18, 2026, from https://www.frontiersin.org/journals/cell-and-developmental-biology/articles/10.3389/fcell.2019.00066/full
  
• Thy-1: More Than a Marker for Mesenchymal Stromal Cells. Retrieved August 18, 2026, from https://faseb.onlinelibrary.wiley.com/doi/full/10.1096/fj.201802224R
• Commonly Used Mesenchymal Stem Cell Markers and Tracking Labels: Limitations and Challenges. Retrieved August 18, 2026, from https://pmc.ncbi.nlm.nih.gov/articles/PMC3839663/

Here is a practical comparison of the two treatments: where the cells come from, how each is prepared, typical costs, how many sessions are needed, and what current evidence supports. This overview focuses on scars, chronic wounds, and hair, since these are the main areas where doctors make these decisions.

What’s Actually Being Injected

PRP: Your Own Platelets, Concentrated

Platelet-rich plasma treatment begins with a blood draw. The sample is centrifuged to separate platelets and their growth factors from red and white blood cells. This creates a concentrate that is then injected back into the treatment area. There are no living stem cells in this process. It works by delivering growth factors, not by using cells, so any clinic that suggests otherwise is exaggerating what is actually in the syringe.

Stem Cell Therapy: Living, Signaling Cells

Stem cell therapy for acne scars in Bangkok and other places usually uses mesenchymal stem cells (MSCs). These cells come from a patient’s own fat or bone marrow, or from carefully screened donor tissue, such as umbilical cord tissue. Unlike PRP, MSCs are living cells that can become part of the treated tissue and continue sending regenerative signals over time, rather than providing a one-time dose of growth factors.

Preparation: Same-Day vs. Lab-Dependent

How PRP Gets Prepared

PRP preparation happens largely in-office, same day. Blood is drawn, spun in a centrifuge for a matter of minutes, and the concentrate is ready for injection within the same appointment. There’s no lab culturing step and no waiting period between draw and treatment.

How Stem Cell Preparation Differs

Preparing stem cells takes more time. After tissue is collected, whether it is fat, bone marrow, or donor cord tissue, it must be processed. In many cases, the cells are expanded in a GMP-compliant lab and tested for viability and sterility before use. The time needed for this process, along with the required accreditation, is a key reason why these two treatments have such different costs.

Comparing the Cost Bracket

PRP is usually the more affordable option in most clinical settings. It typically costs a few hundred dollars to about $2,000 per session, since it can be processed in the office the same day with minimal lab work. Stem cell therapy is more expensive because it involves collecting cells, growing them in a lab, and testing for quality. Prices often range from several thousand dollars up to $15,000 to $25,000, depending on the type of cells, the dose, and the condition being treated. When PRP and stem cell therapy are combined, the cost falls between these two ranges. This combination is often used for wounds and scars when a doctor wants both a quick boost from growth factors and a longer-lasting effect from the cells.

Session Count and Follow-Up

PRP’s Typical Schedule

PRP for scar and wound applications is usually delivered across a short series commonly two to three injections spaced several weeks apart with some patients returning for annual touch-ups depending on how the tissue holds the result.

Stem Cell Therapy’s Typical Schedule

Stem cell treatments usually involve fewer, more concentrated sessions. Sometimes, just one treatment is given for a specific scar or wound. This is because the cells continue to signal in the tissue long after the appointment, so they do not need to be introduced often.

What the Evidence Actually Supports

Scars: Where Each Has Data Behind It

When it comes to scar tissue, PRP has a solid evidence base from randomized trials for healing after surgery and cesarean sections. These studies show clear improvements in healing quality when PRP is used during or soon after wound closure. MSC-based treatments are supported by a growing number of laboratory and animal studies, which suggest that MSCs can reduce collagen buildup and help control overactive fibroblasts in scar tissue. However, there is less human trial data on MSCs for cosmetic scar revision than for PRP.

Chronic Wounds: A Genuinely Comparable Field

Chronic and non-healing wounds are among the few conditions where MSCs and PRP have been directly compared. A recent systematic review and meta-analysis of several randomized controlled trials found that both MSCs and PRP are effective at improving wound closure rates and healing time. However, neither treatment was clearly superior to the other across all wound types. This suggests that the best option often depends on the specific wound rather than following a single rule.

Hair: A Different Evidence Picture

When it comes to hair loss, PRP has a stronger and more established evidence base. Several systematic reviews and meta-analyses show that it can improve hair density in androgenetic alopecia. In comparison, stem cell therapy for hair loss is newer, with promising yet still developing research. At this time, neither treatment has formal regulatory approval for hair restoration in most places.

Which Fits What: A Quick Reference

Making the Actual Decision

The real answer to whether PRP or stem cell therapy is best rarely comes from a list of treatments. It depends on what the tissue actually looks like. For example, a new, mild post-surgical scar is very different from an old, thick scar that does not respond well to treatment, even though both might be called “scarring” online. The same idea applies to a wound that has not healed for months, compared with a healthy incision healing as expected.

If you are looking into stem cell therapy for acne scars in Bangkok, it is usually better to have your tissue tested directly rather than choosing a treatment based solely on its name. The best recommendation often depends on what is really happening under the scar, not on which therapy sounds more advanced.

Old scars, surgical scars, scars that just won’t budge no matter what cream you throw at them that’s what we’re actually talking about here. Not keloids, not acne scars. Those two play by completely different rules and need their own approach, so we’re leaving them out of this one on purpose. What follows is a real look at what’s happening underneath a scar that’s stuck, and the clinical techniques that actually soften that fibrous tissue and get some elasticity back into the skin.

Understanding Scar Tissue Buildup: Why Some Scars Stay Hard and Tight

How Fibrous Tissue Actually Forms

When skin gets injured, the body jumps into repair mode fast, laying down a huge amount of collagen to close the wound as quickly as possible. Speed is the priority there, not precision so that collagen often gets laid down in a tangled, disorganized pattern instead of the neat, aligned structure you’d find in healthy skin. Over time, that disorganized mass hardens into what’s known as fibrous scar tissue, and it tends to pull on the surrounding skin as it does.

Why Older Scars Are Harder to Treat Than New Ones

The longer a scar sticks around, the tighter that fibrous tissue tends to bind, and the less blood supply it has feeding it. Less blood flow means a slower response to treatment which is exactly why treating older, stubborn scars almost always takes longer and typically needs more than one technique working together, rather than a single quick fix.

How Scar Tissue Affects Movement, Not Just Appearance

Scar tissue that forms near a joint elbows, knees, anywhere that moves constantly can genuinely restrict range of motion. This isn’t just a cosmetic issue for a lot of people. It shows up in daily life: trouble bending, reaching, or moving normally through a joint that used to work fine.

Manual Techniques for Breaking Down Scar Tissue

Scar Massage: Simple, But It Actually Works

Scar massage is exactly what it sounds like a physical therapist or physician applies focused pressure and specific movement patterns to loosen tightly bound collagen fibers, encouraging them to realign in a more natural direction. Done consistently, it genuinely reduces tightness and improves flexibility in the scarred area over time.

Myofascial Release for Deeper Restrictions

When the restriction goes deeper down into the fascia, the connective tissue surrounding muscles myofascial release comes into play. This technique uses slow, sustained pressure to release tension in that deeper layer, and it’s often paired with a broader physical therapy program, especially for patients recovering from larger surgical scars.

Instrument-Assisted Soft Tissue Mobilization (IASTM)

IASTM uses specialized metal or rigid tools to apply more targeted, controlled pressure than hands alone can manage. It’s typically reserved for particularly dense scar tissue that hasn’t responded well to manual massage on its own.

Clinical Technologies for Scar Tissue Breakdown and Skin Restoration

Fractional Laser: Prompting Collagen to Rebuild Itself

Fractional laser therapy works by delivering targeted micro-beams into the skin, triggering the body to produce fresh, better-organized collagen in place of the tangled fibrous tissue that’s already there. Over a series of sessions, the treated area typically becomes noticeably softer, more flexible, and closer in tone to the surrounding skin. It’s become one of the go-to laser treatments for scar tissue breakdown for good reason the results tend to hold up.

Pulsed Dye Laser for Red or Purple Scarring

Some older or surgical scars carry a reddish or purplish tint, caused by abnormal blood vessels sitting close to the surface. Pulsed dye laser targets those vessels directly, fading the discoloration while also nudging the underlying collagen structure toward a healthier pattern.

RF Microneedling for Deeper Tissue Remodeling

RF microneedling pairs microneedling with radiofrequency energy, driving heat down into the deeper dermal layer where the fibrous tissue actually lives. That combination breaks down old, poorly organized collagen and encourages new collagen with noticeably better elasticity which makes it particularly useful for surgical scars with visible tightness or pulling.

Ultrasound Therapy: Sound Waves That Loosen Tissue

Therapeutic ultrasound sends high-frequency sound waves deep into the tissue, generating heat that improves blood flow around the scar and helps loosen tightly bound fibrous tissue. It’s frequently combined with a physical therapy program for patients whose movement is genuinely limited by scar tightness.

Injections and Enzymatic Treatments for Stubborn Tissue

Corticosteroid Injections for Thick, Raised Scarring

For hypertrophic scars the raised, thickened kind that isn’t a keloid corticosteroid injections help slow excess collagen production and gradually flatten the scar. These are usually given as a series, spaced several weeks apart, for results that actually last.

Collagenase Injections: Breaking Bonds With Enzymes

Collagenase is a specialized enzyme injected directly into fibrous tissue to break down the tightly bound collagen bonds holding it together. It’s often used when scar tissue is genuinely restricting joint movement, and it works as a solid option for patients who haven’t gotten enough out of massage or laser treatment alone.

Why Combining Techniques Usually Wins Out Long-Term

In practice, getting a real, lasting result from stubborn scar tissue almost always means layering more than one approach relying on just one method rarely gets it done. A typical treatment sequence might look something like this:

1. Start with ultrasound therapy or myofascial release to loosen the deeper fibrous tissue first
2. Follow with RF microneedling or fractional laser to trigger fresh, higher-quality collagen production
3. Reinforce it with consistent scar massage at home to maintain flexibility over the long run

That layered structure is really what makes scar tissue breakdown treatment durable, rather than something that fades within weeks of the last session.

Finding a Clinic That Actually Assesses Your Scar Properly

Getting good results from stubborn scar treatment starts with an accurate assessment how deep the fibrous tissue goes, how old the scar is, and whether its location is affecting movement. All of that shapes which technique actually makes sense for a given patient.

At Vega Derma, the clinical and physical therapy team evaluates each scar individually before building a treatment for scar tissue plan tailored to the patient’s skin and lifestyle — whether that ends up involving laser, microneedling, injections, or some combination of all three.

To learn more about a complete scar tissue therapy approach, you can read our full guide to treatment for scar tissue.

1. Why Keloids Are Different From Regular Scars

Every scar forms from the same basic process: an injury, followed by the body laying down new collagen to close the wound. With a normal scar, that collagen production slows down and stops once the wound has healed. With a keloid, it doesn’t.

• Overactive collagen production continues well past the point of healing, causing the scar to keep expanding beyond the original injury site.
• Genetics play a real role keloids run in families and appear more frequently in people with darker skin tones, though anyone can develop one.
• Common trigger points include ear piercings, acne, chest and shoulder injuries, surgical incisions, and even minor cuts or insect bites in people who are prone to them.

This is exactly why generic scar creams and silicone gels marketed for any scar often underperform on keloids specifically they’re built for scars that are already trying to heal normally, not tissue that keeps actively growing.

The Recurrence Problem

Here’s the part most articles gloss over : keloids have some of the highest recurrence rates of any scar type, with certain treatments alone showing regrowth in a substantial share of patients. That’s precisely why effective treatment for keloids almost always involves more than one method working together, rather than a single quick fix.

2. Procedures Used for Keloid Scar Removal

Corticosteroid Injections

Intralesional steroid injections are usually the starting point for most keloids, particularly smaller or newer ones. A corticosteroid most commonly triamcinolone is injected directly into the scar tissue, where it works to soften the keloid, flatten it, and reduce the itching or tenderness that often comes with it. Sessions are typically spaced four to six weeks apart, and most keloids need several rounds before real flattening shows up.

Steroid injections alone rarely eliminate a keloid completely, but they’re a foundational part of almost every combination protocol because they directly slow the excess collagen production driving the growth.

Surgical Excision

Surgical keloid removal involves physically cutting the raised tissue away. On its own, this is risky cutting into a keloid can trigger the exact same overactive healing response that created it in the first place, and recurrence rates after excision alone are notably high.

That’s why surgical excision is almost never performed as a standalone treatment anymore. It’s typically paired with a follow-up therapy usually steroid injections or radiation applied immediately after surgery to interrupt the regrowth cycle before it starts.

Laser Therapy

Pulsed dye laser treatment targets the blood vessels feeding the keloid, which helps flatten the scar and fade its color, particularly the reddish or purplish tone many keloids develop. It’s gentler than excision and works well for smaller or newer keloids, though it’s generally used as part of a broader plan rather than a solo solution for larger, more established scars.

Cryotherapy

Cryotherapy for keloids freezes the tissue using liquid nitrogen, causing the scar to shrink as the frozen cells break down. It tends to work best on smaller keloids and is often combined with steroid injections, since freezing the tissue first can actually help the medication penetrate more effectively afterward.

Radiation Therapy

For larger or more stubborn keloids especially after surgical removal low-dose radiation therapy is sometimes used within days of excision to prevent the scar tissue from regrowing. It’s a more intensive option generally reserved for keloids that have failed other treatments, and it’s administered under close medical supervision given the precision required.

3. Managing Pain During and After Treatment

Pain management is rarely discussed alongside keloid procedures, but it’s a real part of the process worth understanding beforehand.

• Topical or injectable local anesthetic is standard before steroid injections and excision, minimizing discomfort during the procedure itself.
• Post-procedure tenderness after excision or laser treatment is common for several days, generally managed with over-the-counter pain relief and proper wound care.
• Itching relief matters more than people expect keloids are frequently itchy, and antihistamines or topical treatments are often used alongside procedural treatment to keep patients comfortable during the healing window.
• Silicone sheeting or gel applied after procedures helps reduce both discomfort and the risk of the scar re-thickening as it heals.

Discomfort during keloid treatment is generally manageable and short-lived compared to living with an untreated, actively growing keloid but it’s still worth setting expectations with your provider before starting.

4. Preventing Keloids From Growing Back

This is the piece that actually determines whether treatment holds long-term, and it’s where a lot of at-home or one-and-done approaches fall short.

Pressure Therapy

Pressure garments or clips applied consistently after surgical removal particularly on ear keloids after piercing-related growths can meaningfully reduce recurrence by limiting blood flow to the healing tissue and discouraging excess collagen buildup.

Ongoing Silicone Sheet Use

Long-term use of silicone sheets or silicone gel after any keloid procedure helps regulate the healing environment, keeping collagen production in check while the area continues to heal over the following months.

Scheduled Follow-Up Steroid Injections

Even after a keloid has been successfully flattened or removed, many providers continue maintenance steroid injections for months afterward, specifically to catch and suppress any early signs of regrowth before they become visible again.

Avoiding Known Triggers

For people prone to keloids, avoiding elective piercings, unnecessary skin trauma, and unprotected sun exposure on healing scars all play a real role in reducing the odds of a new keloid forming elsewhere.

Why Combination Treatment Works Best for Long-Term Results

No single procedure reliably prevents recurrence on its own which is why most dermatologists build a combination keloid treatment plan rather than relying on one method. A typical staged approach might look like:

1. Surgical excision to remove the bulk of the raised tissue
2. Immediate steroid injection or radiation at the excision site to interrupt regrowth
3. Pressure therapy and silicone sheeting for several months afterward to maintain the result

This layered approach is consistently associated with better long-term outcomes than excision or injections used alone.

When to See a Specialist for Keloid Treatment

If a scar keeps growing, itches persistently, or hasn’t responded to at-home silicone products, it’s worth having it properly evaluated rather than waiting. A dermatologist can determine exactly which combination of procedures fits the size, location, and history of the keloid because the wrong approach can genuinely make things worse.

At Vega Derma, the clinical team builds individualized treatment for keloids starting with a full assessment of the scar’s size, activity, and history, then selects from steroid injections, laser therapy, cryotherapy, or surgical excision paired with recurrence-prevention protocols based on what’s most likely to hold long-term.

To read more on a complete keloid scar removal approach, or to explore the full range of treatment for keloids available, you can find further details in our in-depth guide.

1. Why Over-the-Counter Remedies Have a Ceiling

Most OTC acne scar products are built around one of a few active ingredients: retinol, vitamin C, niacinamide, or mild acids like glycolic acid. These aren’t useless they can genuinely improve tone and encourage some surface cell turnover. The problem is depth.

• Retinol and vitamin C work primarily in the outer layers of skin. They can brighten discoloration and support collagen signaling to a degree, but the concentrations sold without a prescription are capped for safety, which limits how much change they can actually produce.
• Mild acids exfoliate the surface, which can smooth out very shallow texture. They don’t reach the deeper dermal layer where true acne scarring the kind involving lost collagen actually lives.
• Consistency requirements are steep. Most OTC routines need months of daily use just to show modest results, and even then, they rarely touch a genuine pitted or “ice pick” scar.

The Core Issue: Depth of Damage

Acne scars form when inflammation destroys collagen beneath the skin’s surface. The body tries to repair itself, but the new tissue rarely matches the original structure leaving a depression, a raised patch, or uneven texture behind. A cream applied to the surface simply isn’t positioned to rebuild what was lost several layers down. This is the single biggest reason advanced acne scar treatment exists as its own category of care, separate from everyday skincare.

2. What Kind of Scarring Actually Needs Professional Treatment

Not every mark needs a clinic visit but knowing which ones do can save years of frustration with products that were never going to work.

• Ice pick scars : narrow, deep, and pitted almost never respond to topical products. Their depth requires targeted intervention.
• Boxcar scars : wider depressions with sharply defined edges usually need resurfacing technology to soften the edges and encourage collagen fill.
• Rolling scars : broader, wave-like depressions caused by fibrous bands pulling the skin down typically require treatments that release that tethering and rebuild volume underneath.
• Hypertrophic or raised scarring needs an entirely different approach, focused on breaking down excess collagen rather than stimulating more of it.

If any of these sound familiar and months of serums haven’t made a visible dent, that’s usually the signal that it’s time to look at professional acne scar treatment options instead.

3. Clinical Treatments That Actually Change the Skin’s Structure

This is where the real difference between drugstore products and clinical care shows up. Professional treatments work below the surface, where OTC formulas simply can’t reach.

Laser Resurfacing

Fractional CO2 laser treatment is one of the most well-established options for deeper scarring. It creates thousands of microscopic treatment zones in the skin, triggering an intense collagen rebuilding response while leaving the surrounding tissue intact to speed healing. Results are often visible after just one or two sessions, though it does come with several days of downtime.

For shallower texture and residual redness, Pico laser for acne scars offers a gentler alternative. Its ultra-short pulses target pigment and stimulate collagen with far less disruption to the skin’s surface, which means less downtime a good fit for people who can’t take a week off their regular routine.

Microneedling and RF Microneedling

Traditional microneedling uses fine needles to create controlled micro-injuries that prompt the skin to heal itself with fresh collagen. RF microneedling takes this further by pairing the needles with radiofrequency energy, delivering heat precisely into the deeper layers of skin. This combination tends to produce more noticeable improvement than needling alone, particularly for rolling scars and enlarged pores.

Most people need a series of microneedling scar treatment sessions usually three to six, spaced four to six weeks apart before the full effect becomes visible.

Chemical Peels at Clinical Strength

Chemical peels available in a clinical setting use far higher concentrations than anything sold over the counter, and they’re applied under medical supervision.

TCA CROSS is a technique built specifically for ice pick scars a physician applies a high-strength trichloroacetic acid solution directly into individual scars, triggering localized collagen production without affecting the surrounding skin. It’s one of the few treatments genuinely capable of addressing narrow, deep pitting.

Broader clinical-strength AHA and BHA peels work more generally across the skin, improving tone, smoothing mild texture, and fading lingering redness or discoloration often used alongside laser or microneedling rather than as a standalone fix for deep scarring.

4. Why Combining Treatments Usually Works Better Than Picking One

Dermatologists rarely rely on a single method for meaningful scarring. Instead, they build a combination acne scar treatment plan tailored to the specific mix of scar types present because most people have more than one.

A typical staged approach might look like:

1. TCA CROSS first, to address any deep ice pick scarring
2. Fractional CO2 laser next, to resurface the broader texture
3. RF microneedling as a final phase, to reinforce collagen and tighten the skin over time

This layered approach tends to produce more complete, longer-lasting results than any single treatment on its own and often requires fewer total sessions in the long run.

When Acne Scars Need a Professional Assessment

If OTC products haven’t moved the needle after months of consistent use, or if scarring involves real pitting, unevenness, or raised tissue, it’s worth having it properly evaluated. A dermatologist can identify exactly what type of scarring is present and which treatment or combination of treatments actually fits your skin.

At Vega Derma, the clinical team builds individualized treatment plans starting with a full assessment of scar type and skin condition, then selects from laser resurfacing, RF microneedling, and clinical-strength chemical peels based on what will genuinely move the needle not a one-size-fits-all protocol.

To explore a complete acne scar treatment approach, you can read more in a full guide to treating deep acne scars with medical-grade technology.

Why your last treatment may have disappointed you

A very common story in our clinic sounds like this. A patient books a course of laser, completes it, sees maybe 20 to 30% improvement, and concludes that acne scars simply cannot be fixed.

Usually the problem was not the laser. It was that the laser was asked to treat a scar type it was never going to solve on its own.

Deep ice pick scars extend into the deep dermis through a narrow opening. Fractional resurfacing treats a column of tissue but cannot reach the base of a scar that goes deeper than the device penetrates. Rolling scars are held down by fibrous bands tethering the skin to underlying tissue. No amount of surface resurfacing will release a tether. It has to be cut.

Matching procedure to anatomy is the whole discipline. Everything else is detail.

First, work out what you are actually looking at

Atrophic scars (depressed, roughly 80 to 90% of acne scarring)

• Ice pick scars. Narrow, deep, V-shaped. Look like a puncture from a fine needle. Often on the cheeks. Under 2mm wide but reach deep into the dermis.
• Boxcar scars. Round or oval with sharply defined vertical walls, like a small crater. Shallow or deep. Commonly on cheeks and temples.
• Rolling scars. Wide, shallow, with soft sloping edges that give the skin an undulating appearance. Caused by fibrous tethering below the surface. Often most visible in raking side light.

Raised scars

• Hypertrophic scars. Raised, firm, staying within the boundary of the original lesion. More common on the chest, shoulders, and jawline.
• Keloids. Raised scars that grow beyond the original lesion boundary and do not regress on their own. Higher risk in Asian, African, Middle Eastern, and Latin American skin, which makes them a common presentation in Thailand. They behave differently enough from hypertrophic scars to need their own approach, covered on our keloid treatment page.

Not scars

• Post-inflammatory erythema (PIE). Flat pink or red marks. Dilated capillaries left after inflammation. Common in lighter skin.
• Post-inflammatory hyperpigmentation (PIH). Flat brown or grey-brown marks. Excess melanin left after inflammation. Very common in Thai and other Asian skin.

Both are flat. Run a fingertip over them. If the surface is smooth and level, it is discolouration and not a scar, and it should not be treated with an aggressive resurfacing device. Many patients spend a great deal of money resurfacing marks that would have faded with sun protection and a topical.

Treatment matched to scar type

What the evidence says about combining treatments

The clearest message across the research is that combinations work better than monotherapy.

A retrospective analysis of 413 patients found that fractional CO2 laser combined with subcision achieved a 92.09% overall efficacy rate compared with 77.78% for fractional CO2 laser alone. A randomised study of 40 patients found that subcision combined with either fractional CO2 laser or cross-linked hyaluronic acid filler produced significantly greater improvement than subcision alone, measured on Goodman and Baron grading. Systematic review evidence similarly reports that combination therapy generally achieves superior clinical improvement over single-modality treatment, particularly for scar texture, depth reduction, and patient-reported satisfaction.

Case series using triple combinations of TCA CROSS, subcision, and microneedling, each targeting a different mechanism, report consistently high patient satisfaction.

The reason is mechanical. Subcision releases tethering. TCA CROSS reaches into narrow deep scars that lasers cannot. Fractional resurfacing rebuilds collagen across the surface. Fillers or biostimulators restore volume. They address different problems, so stacking them compounds the result rather than duplicating it.

Where regenerative therapy fits

A newer layer sits alongside these. Regenerative and cell-based approaches, which many patients search for as stem cell therapy for acne scars Bangkok clinics offer, aim to improve collagen production, elasticity, and overall tissue quality rather than to reshape the scar mechanically.

Our position on this is deliberately conservative. Early studies and clinical experience suggest a benefit in atrophic scarring, particularly when used inside a broader programme, but long-term data is still developing. We treat it as a promising adjunct that supports tissue quality after the structural work has been done, not as a stand-alone cure and not as a substitute for subcision or resurfacing. Any clinic presenting it as a single-session fix for deep scarring is overselling it.

The Asian skin factor, which many articles skip

This is the part that matters most for patients in Bangkok.

Most Thai patients fall into Fitzpatrick skin types III to V. Melanocytes in these skin types are more reactive, so heat and inflammation are more likely to trigger post-inflammatory hyperpigmentation. Fractional CO2 laser is widely regarded as an effective option for acne scar remodelling across skin types I to V, but its use in darker skin types is challenging, with PIH incidence reported as high as 100% in some case series.

That does not mean lasers are off the table for Thai skin. It means technique matters more:

• Conservative energy and density. Comparative review data shows adverse effects in 28% of patients treated with high-energy fractional CO2 settings versus 9% with low-energy protocols. More sessions at lower energy is often the better trade for pigmented skin.
• Fractional rather than fully ablative delivery. Treating microscopic columns and sparing surrounding tissue speeds healing and lowers inflammatory load.
• Non-ablative and radiofrequency microneedling options. A retrospective review of 115 sessions using a 1,550nm non-ablative fractional laser in Fitzpatrick IV to VI patients recorded PIH in only 4% of sessions. RF microneedling delivers energy into the dermis through insulated needles while largely sparing the epidermis, which reduces pigment risk.
• Pre-conditioning and post-treatment protocols. A study of pre- and post-treatment chemical peeling around fractional CO2 resurfacing reported a median PIH severity score of zero in the treated group, versus meaningful pigmentation in controls.
• Strict sun protection. Non-negotiable in Bangkok. Daily broad-spectrum SPF 50, reapplied, plus physical shade for the weeks after each session.

If a clinic proposes the same settings for you that they would use on a Northern European patient, that is a reason to ask more questions.

The order of operations

Step 1: Control active acne. Resurfacing skin that is still breaking out produces new scars. Acne should be stable before scar treatment begins. If you are on or recently finished isotretinoin, your doctor will discuss timing for procedures.

Step 2: Map the scars. A proper consultation should identify which types you have and in what proportion, ideally with photography under angled lighting that reveals depth. Most patients have a mixture, which is why one procedure rarely does everything.

Step 3: Sequence the plan. Deep and structural work first, in many cases. Subcision and TCA CROSS address architecture. Resurfacing then smooths what remains. Volume correction comes last, once you can see what is left.

Step 4: Space sessions properly. Four to eight weeks between sessions gives collagen remodelling time to happen. Collagen continues to reorganise for three to six months after your last session, which means your final result is not the one you see at the two-week review.

Step 5: Maintain. Sun protection, a retinoid if appropriate, and ongoing acne control protect the result.

What to ask a Bangkok clinic before booking

1. Which scar types do I have, and in what proportion?
2. Which procedure are you using for each type, and why that one?
3. Is the procedure performed by a doctor, and what is their specialty training?
4. What settings will you use for my skin type, and what is your protocol for preventing PIH?
5. What is the full course cost, and what does it include if I need an extra session?
6. Can I see before and after photographs of patients with my scar type and my skin tone?
7. What happens if I develop pigmentation afterwards, and is that follow-up included?

The photograph question is the most revealing. Results on Fitzpatrick II skin tell you very little about what will happen to Fitzpatrick IV skin.

Recovery, honestly

• Fractional laser: Redness and a sandpaper texture for three to seven days. Swelling for the first 48 hours. Fine bronzing and flaking as the treated columns shed. Makeup usually possible from day five to seven.
• TCA CROSS: Small dark crusts at each treated point, resembling scattered dots. These last five to seven days and must not be picked. Visible and difficult to hide, so plan around social commitments.
• Subcision: Bruising and swelling for seven to fourteen days, sometimes significant. Small lumps can occur as healing tissue forms and usually settle.
• RF microneedling: Redness for one to three days, sometimes grid-pattern marks for 24 to 48 hours.

Across all of them, the two rules that most affect your outcome are: do not pick, and do not expose the area to direct sun.

How acne scar treatment is planned at Vega Derma, Bangkok

Because most patients arrive with a mixture of scar types, we start with scar mapping rather than with a device.

At consultation we photograph the face under angled lighting and map which scars are rolling, boxcar, ice pick, hypertrophic, or keloidal, and separately identify which marks are actually PIE or PIH and therefore should not be resurfaced at all. That map is what the protocol is built from.

A typical acne scar treatment in Bangkok plan with us combines two to four of the following, sequenced across sessions:

Two things we do differently, and both are specific to treating Thai and Southeast Asian skin. Device settings, post-procedure care, and session spacing are adjusted for your Fitzpatrick type rather than run at default parameters, because aggressive protocols on pigmented skin cause more harm than benefit. And progress is tracked with standardised photography at every visit, so improvement is documented rather than remembered.