In this study, collagen type I, skin fibroblasts, and macrophages did not show remarkable changes in androgenic alopecia patients' scalp tissues after treatment with 1550 nm fractional Er:Glass laser, despite improved hair regrowth.
October 2022 in “Journal of Drugs in Dermatology” This study observed that both PRP and 1550 nm fractional erbium-glass laser improved AGA, with greater hair density in patients receiving the combination therapy and no side effects reported.
April 2018 in “Journal of Investigative Dermatology” This study found that 1550-nm Er:Glass fractional laser treatment significantly increased hair density and shaft diameter in patients with androgenetic alopecia, though the mechanism may not involve Wnt10A or IGF-1 expression.
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April 2019 in “Lasers in Medical Science” This study found that combining fractional erbium-glass laser therapy with topical minoxidil significantly improved hair density and diameter in men with androgenetic alopecia compared to using minoxidil alone over a 24-week period, with no serious adverse events reported.
June 2021 in “Journal of Cosmetic Dermatology” Laser treatment shows promise for hair growth, but needs further research.
