Low Level Light Therapy

LLLT Affects Proteins Associated with Hair Growth and Miniaturization

LLLT Upregulates Proteins in Dermal Papilla

Low level light therapy (LLLT) significantly up‐regulated 11 proteins and down‐regulated two proteins in the dermal papilla (DP), offering a potential explanation of its mechanism of action in hair regrowth. Researchers Ratchathorn Panchaprateep MD, PhD, et al, obtained punch scalp biopsy specimens from male patients with androgenetic alopecia (AGA) before and after LLLT treatment. Subjects used an at-home, helmet-type LLLT device (655 nm, 5 mW) for 25 minutes every other day for 24 weeks.