Use of Low-Level Laser Therapy in Treatment of Androgenic Alopecia: The First Systematic Review

December 2017 in “ Journal of Cosmetic and Laser Therapy ”

Ibrahim Najem, Hongxiang Chen

low-level laser therapy androgenic alopecia hair density hair count LLLT

TLDR Low-level laser therapy can improve hair density in people with androgenic alopecia, but more research is needed to find out who it works best for.

In 2018, a systematic review by Ibrahim Najem and Hongxiang Chen analyzed 11 studies involving 444 males and 246 females to evaluate the effectiveness of low-level laser therapy (LLLT) in treating androgenic alopecia. The studies, which used wavelengths from 625 nm to 655 nm and power settings of 5 MW or less, reported a significant improvement in hair density in both males and females after LLLT treatment. However, two studies did not record a significant increase in hair count. The review concluded that LLLT could be an effective treatment for androgenic alopecia, but recommended further research to identify ideal candidates for this treatment.

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