GLASS LAB · Medical Aesthetics Evidence Index 303 cells · 19,226 papers · 5,969 top-tier evidence

Acne / Scar / Texture · Hypertrophic scar / keloid

Fractional laser resurfacing evidence for Hypertrophic scar / keloid

B 61.0 / 100 Supported 25 RCT/meta · 13 clinical/observational · 14 case · 103 total
Good evidence · positive conclusion

There is a relatively good level of clinical evidence, and a majority of papers support its effectiveness.

Grade combines the quantity and quality of the research, while direction is a separate signal showing how the papers assess effectiveness.

Includes meta-analysis/SR Median year 2021 Last 5 years 52% Positive results 62% Negative results 9 Korea/Asia 8

Known in Korea as

프락셀프락셀/피코프락셀

Procedure and brand names vary, but the evidence above applies to the same procedure mechanism.

Key papers

tier1 Efficacy and safety of fractional CO2 laser therapy combined with triamcinolone acetonide injection for hypertrophic scar: a preliminary systematic review and meta-analysis. Frontiers in medicine · 2026 · PMID 41657578

Abstract summary (English) BACKGROUND: This study aims to systematically evaluate the efficacy and safety of fractional CO2 laser therapy combined with triamcinolone acetonide (TA) injection for hypertrophic scar (HS). MATERIALS AND METHODS: Randomized controlled trials (RCTs) investigating the combination therapy of fractional CO₂ laser and TA injection for HS were identified through systematic searches of PubMed, Embase, Cochrane...

Journal Article, Systematic Review

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tier1 Pulsed dye laser, fractional CO2 laser, or combination for burn scar treatment: a systematic review. Lasers in medical science · 2025 · PMID 41003790

Abstract summary (English) Purpose Burn injuries often result in hypertrophic scars, causing functional impairment and aesthetic concerns. Laser therapies, including pulsed dye laser (PDL) and ablative fractional CO2 laser (AFCL), have emerged as promising treatments. This study aimed to evaluate the efficacy and safety of PDL, AFCL, and their combination in treating burn scars through a systematic review and network meta-analysis.

Journal Article, Systematic Review, Network Meta-Analysis

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tier1 The use of laser monotherapy in the treatment of keloids and hypertrophic scars: A look at the carbon dioxide laser. A systematic review and meta-analysis. Lasers in medical science · 2025 · PMID 40962972

Abstract summary (English) To evaluate the effectiveness of fractional CO2 laser monotherapy in treating HS and keloids compared to other laser treatments. A systematic review and meta-analysis were conducted by searching Medline, PubMed, and Cochrane databases for studies comparing fractional CO2 laser therapy to other laser treatments for hypertrophic scars and keloids. Data were analyzed using IBM SPSS Statistics, assessing Vancouver Scar...

Journal Article, Systematic Review, Meta-Analysis

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tier1 Lessons Learned Evaluating Ablative Fractional CO2 Laser for Burn-Related Donor Site Scars. Journal of burn care & research : official publication of the American Burn Association · 2025 · PMID 40067916

Abstract summary (English) Hypertrophic scar (HTS) remains a comorbidity of burn injury, often requiring split-thickness skin grafting (STSG) and resulting in symptomatic HTS at grafted sites and STSG donor sites (DS). Literature supports the use of ablative fractional CO2 laser (FLSR) to treat HTS, however many trials lack control sites and tissue-level examinations. Given the widespread adoption of FLSR for HTS, delegation of non-treated...

Journal Article, Randomized Controlled Trial

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tier1 A systematic review of comparative clinical trials on the efficacy, safety, and patient satisfaction of ablative and non-ablative laser therapies for atrophic, hypertrophic, and keloid scars. Lasers in medical science · 2025 · PMID 40515775

Abstract summary (English) Scar formation is a common outcome of tissue injury, manifesting as atrophic, hypertrophic, and keloid scars, which can significantly impact quality of life. Laser therapy has emerged as a promising treatment modality for scars, encompassing ablative and non-ablative approaches, yet there are gaps in understanding their comparative efficacy, safety, and patient satisfaction. This study aims to comprehensively review...

Journal Article, Systematic Review, Comparative Study

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tier1 Impact of pentoxifylline on efficacy, safety, tolerability, and treatment satisfaction of fractional carbon dioxide laser in patients with burn scars: a pilot blinded randomized controlled trial. Lasers in medical science · 2025 · PMID 40178694

Abstract summary (English) Burn scars are significant consequence of thermal burn injuries, causing cosmetic concerns and potentially leading to symptomatic discomfort or functional limitations; therefore, continuous adoption of novel methods is warranted to improve outcomes. This study aims to assess and compare the effectiveness, safety, and satisfaction of fractional CO2 laser treatment alone versus its combination with oral pentoxifylline...

Journal Article, Randomized Controlled Trial

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tier1 Comparison of The efficacy and safety of fractional erbium: YAG laser in combination with Tranexamic acid delivery by different methods versus Tranexamic acid alone: A systematic review and meta-analysis. Archives of dermatological research · 2025 · PMID 40167772

Abstract summary (English) Melasma is a chronic hyperpigmentary disorder characterized by light-brown to bluish-gray patches. No single treatment is universally efficacious. Thus, a combination treatment should be applied.

Journal Article, Systematic Review, Meta-Analysis, Comparative Study

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tier1 Evaluating the combination and comparison of ablative fractional lasers (CO2, Erbium-YAG) with pulsed dye laser (PDL) for treating hypertrophic scars: a systematic review. Lasers in medical science · 2025 · PMID 40055224

Abstract summary (English) The aim of this study is to compare pulsed dye laser (PDL) and ablative fractional lasers (CO2, Erbium-YAG) in the treatment of hypertrophic scars in a systematic review. Databases including Web of Science, Science Direct, Google Scholar and PubMed were searched for clinical trials up to December 1, 2022; focusing on the role of ablative fractional lasers and pulsed dye lasers in treating hypertrophic scars, using...

Journal Article, Systematic Review, Comparative Study

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tier1 The efficacy of fractional CO2 laser with or without triamcinolone acetonide or 5-fluorouracil in the treatment of early postburn hypertrophic scars. Lasers in medical science · 2025 · PMID 39847194

Abstract summary (English) Hypertrophic scars (HTSs) are the result of an abnormal healing process resulting from burns and other severe traumas. The symptoms of that condition include skin irritation, discomfort, and itching. This study aimed to assess the efficacy of fractional carbon dioxide (CO2) laser therapy alone or with triamcinolone or 5-fluorouracil (FU) in the treatment of early post-burn hypertrophic scars (HTSs) that...

Comparative Study, Journal Article, Randomized Controlled Trial

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tier1 Combined Stromal Vascular Fraction and Fractional CO2 Laser Therapy for Hypertrophic Scar Treatment: A Systematic Review and Meta-Analysis. Aesthetic plastic surgery · 2024 · PMID 39333369

Abstract summary (English) BACKGROUND: Hypertrophic scars (HTSs) result from aberrant wound healing processes, leading to raised, thickened tissue with functional discomfort and cosmetic concerns. Current treatments, including corticosteroid injections and laser therapy, have limitations. Stromal vascular fraction (SVF) therapy and CO2 laser treatment offer promising avenues, with SVF therapy showing regenerative potential and CO2 laser...

Journal Article, Systematic Review, Meta-Analysis

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Suggested interpretation

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