Low-Level Laser Therapy in Androgenetic Alopecia: Narrative Review

March 2023 in “ Medical lasers ”

Hyun Seok Ryu, Byong-Taek Lee, Andrew Padalhin, Phil-Sang Chung, Seung Hoon Woo

low-level laser therapy androgenetic alopecia LLLT hair growth red light hair density hair thickness minoxidil laser therapy AGA Rogaine

TLDR Low-level laser therapy is a safe and effective treatment for hair loss.

The narrative review on low-level laser therapy (LLLT) for androgenetic alopecia (AGA) discusses various studies and trials that have explored the efficacy of LLLT in promoting hair growth. The review highlights that LLLT, using devices such as helmets and combs emitting red light, has shown promising results in both men and women with AGA. Multiple randomized, double-blind, sham device-controlled trials, including those with durations of 16 to 24 weeks, have demonstrated significant improvements in hair density and thickness. The review also notes that combining LLLT with other treatments like minoxidil can enhance outcomes. Overall, LLLT is presented as a safe and effective option for managing AGA, with minimal side effects reported.

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Male androgenetic alopecia is commonly treated with topical minoxidil and oral finasteride, both requiring continuous use. Other options include hair restoration surgery, dutasteride, light therapy, and camouflaging agents.

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Key treatments for hair preservation include minoxidil, finasteride/dutasteride, and microneedling, with additional options like specific shampoos, oils, biotin, zinc, tretinoin, clascoterone, and low-level laser therapy. Maintaining a healthy lifestyle, reducing stress, and addressing nutrient deficiencies can also support hair health.

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The treatment for androgenetic alopecia involves using finasteride and minoxidil with intense exercise and cold exposure to boost metabolism and reduce androgenic effects, potentially leading to hair regrowth. This approach may activate biological pathways for improved hair and overall health.

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