Clinical Safety and Efficacy of Dual Wavelength Low-Level Light Therapy in Androgenetic Alopecia: A Double-Blind Randomized Controlled Study

December 2024 in “ Dermatologic Surgery ”

Meryl Thomas, Max A. Stockslager, John R. Oakley, Thomas Matthew Womble, Rodney Sinclair

dual wavelength low-level light therapy LED caps androgenetic alopecia hair density AGA LED light therapy

TLDR Dual wavelength LED caps can safely increase hair density in androgenetic alopecia.

The study investigated the clinical safety and efficacy of dual wavelength low-level light therapy using LED caps for treating androgenetic alopecia (AGA) in a 26-week, multicenter, double-blind, randomized controlled trial involving 160 subjects. Although individual study arms did not show statistically significant results, the pooled analysis of the three active study arms demonstrated a significant increase in hair density, with 28.5 more hairs per cm² compared to the sham group (p = .033). The LED caps were well tolerated, indicating their potential as a treatment for AGA.

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