Red Light Therapy for Hair Growth: Does It Work?
Hair loss affects millions of people. Red light therapy (LLLT) is FDA-cleared for treating hair loss, but does it actually work? How Red Light Therapy Helps Hair Red light therapy stimulates hair growth through several mechanisms: Stimulates hair follicle stem cells — Wakes up dormant follicles Increases blood flow to scalp — Delivers more nutrients to hair roots Reduces inflammation — Chronic inflammation contributes to hair loss Extends anagen (growth) phase — Keeps hair in the growing phase longer Increases ATP production — Gives follicle cells more energy to grow Clinical Evidence FDA Clearance In 2007, the FDA cleared LLLT (low-level laser therapy) for treating androgenetic alopecia (pattern hair loss) in both men and women. ...