9 citations
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November 2021 in “PubMed” FDA-approved low-level light/laser therapy devices can significantly increase hair density in people with pattern hair loss.
23 citations
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June 2021 in “Lasers in Medical Science” Blue light therapy may help with hair growth, but more research is needed.
147 citations
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January 2014 in “American Journal of Clinical Dermatology” Laser device increases hair density, safe for treating hair loss in men and women.