TLDR Low-level laser therapy is effective and safe for treating hair loss.
The review from 2014 examined various studies and patents on laser treatments for hair loss, finding that low-level laser therapy (LLLT) was effective and safe for treating different types of alopecia with minimal side effects, while high-level lasers were more suited for surgical applications and hair transplantation. The studies, some involving up to 491 participants, supported the reliability of these findings. However, the review noted the need for further research with larger, randomized, double-blind studies to optimize protocols and confirm long-term efficacy. Integrating laser therapy with traditional Korean medicine was suggested to potentially enhance treatment outcomes.
40 citations
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February 2012 in “Dermatology Online Journal” Lasers might help hair growth in some alopecia cases, but more research is needed to confirm their effectiveness and safety.
68 citations
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January 2007 in “Journal of Cosmetic and Laser Therapy” Laser/light treatments for hair loss are popular but lack scientific data proving effectiveness.
May 2021 in “Lasers in Surgery and Medicine” Minoxidil and photobiomodulation together improve hair growth better than minoxidil alone.
January 2019 in “Springer eBooks” PRP and LLLT can improve hair growth in AGA, but more research needed.
October 2025 in “Dermatology Practical & Conceptual” ChatGPT 4.0 and Gemini 1.5 Flash are effective for educating patients about androgenetic alopecia, while Deepseek R1 is less reliable.
August 2015 in “Advances in Small Animal Medicine and Surgery” Low-level laser therapy may help regrow hair in dogs with non-inflammatory hair loss.
22 citations
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September 2014 in “Veterinary Dermatology” Low-level laser therapy seems to help dogs with noninflammatory alopecia grow hair back.
