April 2023 in “Journal of Investigative Dermatology” In this study, Nd:YAG picosecond lasers using fractional micro-lens array were found to have a comparable effect to ablative fractional Er:YAG lasers in treating atrophic acne scars, with better safety profiles but slightly less patient satisfaction.
March 2026 in “Frontiers in Cell and Developmental Biology” This meta-analysis found that autologous cell-based therapies, especially stromal vascular fraction, significantly improved atrophic acne scars over control treatments, enhancing both clinical and patient-reported outcomes.
January 2025 in “Dermatologic Therapy” In this study, treatment with fractional CO2 laser combined with recombinant humanized type III collagen led to significantly better improvements in atrophic acne scars compared to laser treatment with saline, attributed to collagen upregulation and MAPK pathway activation in human dermal fibroblasts.
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October 2023 in “Clinical Cosmetic and Investigational Dermatology” This study found that combining ultrapulsed fractional CO2 laser with bovine basic fibroblast growth factor significantly improved acne scars more effectively and safely compared to laser therapy alone.
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April 2026 in “Aesthetic Plastic Surgery” This study found that radiofrequency microneedling is effective and well-tolerated for improving various skin conditions, showing comparable efficacy to fractional lasers for atrophic acne scars with generally favorable patient satisfaction and safety.