Low‐level laser (light) therapy (LLLT) for treatment of hair loss

    August 2013 in “ Lasers in Surgery and Medicine
    Pinar Avci, Gaurav Gupta, J. E. Clark, Norbert Wikonkál, Michael R. Hamblin
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    TLDR Low-Level Laser Therapy is effective and safe for hair growth with minimal side effects.
    The 2013 document reviews evidence supporting Low-Level Laser (Light) Therapy (LLLT) as a treatment for hair loss, including its potential mechanisms and clinical trial results. It highlights that LLLT has been shown to stimulate hair growth in animal models and in humans with different types of alopecia, such as Androgenetic Alopecia (AGA) and Alopecia Areata (AA). Clinical trials, including one with 110 male AGA patients, have reported positive outcomes like increased hair density. The therapy works by stimulating epidermal stem cells in the hair follicle and inducing the anagen phase of hair growth. While LLLT is considered safe and effective, with minimal side effects, more research is needed to determine optimal treatment parameters. The document also compares LLLT to other hair growth treatments like minoxidil and discusses the FDA approval of LLLT devices for hair loss treatment.
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