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.
8 citations,
October 2020 in “Lasers in Medical Science” LLLT helps treat hair loss by increasing blood flow, reducing inflammation, and stimulating growth factors.
15 citations,
May 2015 in “Photomedicine and Laser Surgery” Low-Level Laser Therapy may help with flap survival and burn scar healing, but not with venous ulcers or hair loss, and more research is needed.
21 citations,
January 2019 in “Lasers in Medical Science” Low-level laser therapy significantly increases hair density in adults with hair loss, with low-frequency treatment being more effective.
January 2023 in “Skin appendage disorders” Laser treatment for hair loss works equally well on different skin types, but more research is needed for very dark skin.
54 citations,
May 2018 in “Journal of The European Academy of Dermatology and Venereology” Low level laser therapy works best for hair loss, followed by PRP, finasteride, and minoxidil.
60 citations,
December 2015 in “Lasers in Medical Science” Low-level laser therapy is safe and can increase hair growth for male and female pattern hair loss.
