TLDR Low level laser therapy is effective and safe for various skin and hair conditions.
Low level laser therapy (LLLT) is widely used in modern medicine, including cosmetic dermatology, for treating conditions like wrinkles, acne vulgaris, hypertrophic scars, hair loss, cellulite, and burns. It can also reduce UV damage and increase pigmentation in disorders like vitiligo by stimulating melanocyte proliferation. The non-invasive nature and minimal side effects of LLLT make it a promising area for further research.
3 citations,
August 2021 in “Journal of Cosmetic Dermatology” 
33 citations,
January 2021 in “Aesthetic Surgery Journal” Low-Level Light Therapy (LLLT) is a safe and effective method for skin rejuvenation, acne treatment, wound healing, body contouring, and hair growth, but more well-designed trials are needed for confirmation.
21 citations,
January 2019 in “Experimental dermatology” Light therapy using helium-neon lasers can help restore skin color in vitiligo by promoting skin cell growth and movement.
January 2019 in “Springer eBooks” PRP and LLLT can improve hair growth in AGA, but more research needed.
4 citations,
February 2014 in “Proceedings of SPIE” Low-Level Light Therapy is effective for skin rejuvenation, wound healing, and hair growth, with mild side effects.
2 citations,
February 2007 in “Journal of The American Academy of Dermatology” Red and infrared light therapy improves hair growth in balding patients.
