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This special issue reviews various advances in laser and light-based technologies for dermatological treatments, emphasizing improvements for diverse skin types, but reports no new empirical results.

This study found that three treatments with the 810-nm diode laser improved skin texture and roughness/bumpiness in keratosis pilaris patients, although it did not reduce redness.

This study found that using polarized magnification during hair transplant procedures may ease recipient site creation and reduce transection of existing hair follicles, potentially maximizing hair density.

This meta-analysis found that laser-based therapies showed promising clinical benefits in treating scarring alopecias, such as disease stabilization and symptom improvement, but highlighted the need for high-quality randomized controlled trials due to serious risk of bias and methodological limitations in existing studies.

This study highlights examples of successful hair growth using combined laser therapy and autologous exosome therapy, suggesting a synergistic effect that may enhance beauty treatments and other therapeutic applications.

This case report describes the first use of photobiomodulation therapy with a continuous wave red laser (660 nm) as monotherapy for alopecia areata, resulting in significant hair regrowth within 7 days, though further research is needed for conclusive evidence.

This study found that low-level laser therapy may enhance wound healing and reduce pain, swelling, and inflammation by increasing mitochondrial activity and oxidative stress, leading to greater protein synthesis and cell proliferation.

This editorial emphasizes the critical need for laser protection supervisors in the aesthetic sector due to a rise in laser-related claims attributed to inadequate training and safety protocol adherence, highlighting that better understanding and supervision can help mitigate risks.

This study found that low-level laser therapy increased the expression of proteins in dermal papilla tissues, suggesting it promotes hair growth in male androgenetic alopecia patients.

This article reviews light-based hair removal devices for home use, highlighting safety issues and the need for consistent international regulations and guidelines for their manufacture and marketing.

This study found that UV laser-induced fluorescence spectroscopy can effectively differentiate between types of alopecia in patients, showing a high correlation between blood circulation levels and tissue autofluorescence intensity.

This study describes a new intravital microscopy method for observing intestinal regeneration by tracking crypt dynamics in living mice after laser-induced tissue damage, revealing events like crypt fission, fusion, and disappearance over multiple weeks.

This study found that low-level laser therapy may effectively stimulate hair growth in adults with androgenic alopecia, but further research is needed to confirm its long-term clinical effectiveness.

Low-level laser therapy effectively improves hair growth in androgenetic alopecia with minimal side effects.

This study found that low-level laser therapy (LLLT) may enhance hearing recovery after noise-induced hearing loss in rats.

In this study, helium-neon laser irradiation at approximately 1 J/cm² significantly increased the percentage of hair follicles in the anagen phase in both testosterone-treated and untreated mice, suggesting stimulation of hair growth.

This letter discusses the state of laser hair transplantation as of its 1996 publication but reports no new findings or clinical results.

This article shares the authors' experiences with the erbium YAG laser in hair restoration surgery, noting improved graft yield and reduced thermal damage compared to traditional methods.

This review highlights advancements in hair laser removal technologies, which achieve approximately 75% hair reduction in light-skinned individuals, noting the long-pulsed Nd:YAG laser as safest for dark-skinned patients, but reports no new results.

This study revealed that photobiomodulation significantly improved hair density in androgenetic alopecia patients, with laser treatments being more effective than combined laser/LED treatments, while device style did not significantly affect outcomes.

This review examines clinical trials on low-level laser therapy for pattern hair loss but reports no definitive conclusions, highlighting the need for more controlled studies to resolve uncertainties.

The Epilight Hair Removal System is effective for temporary hair removal with few side effects, but more research is needed to confirm its safety and long-term results.

In this study, low-level laser/LED therapy significantly increased hair density in patients with androgenetic alopecia compared to placebo over 4 to 26 weeks; however, the efficacy for other alopecia types remains unclear, requiring further research.

Combining low-level laser therapy with topical corticosteroids effectively improved Lichen Planopilaris symptoms.

This review found promising evidence for the efficacy of certain laser and light-based therapies in treating various forms of alopecia, such as low-level light therapy for androgenetic alopecia and excimer laser for alopecia areata, but emphasized the need for further understanding of these treatments.

This study found that low-level laser therapy may reduce inflammation and increase hair thickness in patients with lichen planopilaris after six months of treatment, though the small sample size limits the findings.

This study investigated the effects of 10600nm CO2 dot laser and Nd: YAG laser on Wistar rats' skin, finding that CO2 laser treatment resulted in higher positive expression of MMP-1 and TIMP-1 compared to Nd: YAG laser, with statistically significant differences noted.

In this study, a 3-month treatment with a 2940 nm Er:YAG laser, combined with conventional therapy, effectively reduced microfibrosis around hair follicles and increased hair growth in the anagen stage among 85 men with androgenetic alopecia.

This study found that the dual-wavelength non-ablative fractional laser provides enhanced skin rejuvenation by increasing thermal lesion coverage and collagen remodeling compared to using the CO2 laser alone in an ex vivo setting.

This study reports that using LED polarized magnification in hair transplant recipient sites can reduce eye strain and improve ease of site creation, but offers no graft placement advantage over traditional methods.