Lasers in Hair Growth and Hair Transplantation

    January 2018 in “ Springer eBooks
    Nicole E. Rogers, Marc R. Avram, Isabella Camacho, Ali Rajabi‐Estarabadi
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    TLDR Lasers are less favored for hair transplant surgery but show promise for hair growth in controlled trials.
    The document from 2018 examines the use of lasers in hair transplantation and their effectiveness in promoting hair growth. It notes that while hair transplants yield natural results and are in high demand, the use of lasers for creating recipient sites has been problematic due to issues like graft fallout and damage to surrounding tissues, leading to a preference for steel needles. Low-Level Light Therapy (LLLT) has shown promise in controlled trials for hair growth, with devices available over-the-counter. Studies cited include a 2013 study with 40 Korean subjects showing significant hair density increase, a study with 44 male participants noting a 35% increase in hair count, and a larger study with 269 subjects demonstrating increases in mean terminal hair count after 26 weeks. LLLT is thought to work by mechanisms such as increasing ATP levels and VEGF. Despite FDA clearance, more research is needed to fully understand LLLT's efficacy and safety. The use of lasers in hair transplantation is less favored, but they may still be useful in medical therapy for hair loss and post-operative healing. Consumers are advised to be cautious when purchasing LLLT devices, and physicians should consider them as an option when other treatments fail.
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