13 citations,
October 2011 in “Clinical and Experimental Dermatology” Laser hair-comb therapy doesn't improve male-pattern hair loss.
19 citations,
September 2011 in “Seminars in Cutaneous Medicine and Surgery” At-home laser and light skin devices are less effective than professional ones, with limited scientific evaluation, but some show promise for wrinkles, hair growth, and acne.
9 citations,
November 2021 in “PubMed” FDA-approved low-level light/laser therapy devices can significantly increase hair density in people with pattern hair loss.
4 citations,
January 2011 in “Current problems in dermatology” At-home laser and light devices can safely reduce acne and hair growth when used correctly but are less effective than professional treatments.
13 citations,
December 2017 in “Journal of Cosmetic and Laser Therapy” Low-level laser therapy can stimulate hair growth more effectively than fake devices, but patient satisfaction is similar for both. Results should be taken with caution due to small study sizes and differences between studies. More research is needed.