Red light
HairMax RegrowMD Laser 272 Cap
HairMax
Laser cap with 272 laser diodes in a flexible liner worn under a sports cap, used 30 minutes 3 days a week per HairMax. Price: $1,199, checked Oct 3, 2026; 6-month money-back guarantee (the product page states a 25% restocking fee, the site terms say 20%) and a 1-year warranty. Regulatory: FDA-cleared (K180885) for over-the-counter use to promote hair growth in men (Norwood-Hamilton IIa-V) and women (Ludwig-Savin I-II or frontal) with androgenetic alopecia and Fitzpatrick skin types I-IV; not cleared for other types of hair loss. FDA's record names the device HairMax Laser Model 272, and HairMax's own FDA page ties that clearance to the RegrowMD Laser Cap. The product page doesn't state the wavelength (FDA summary: 650 nm). Evidence grade: B (for the device category, androgenetic alopecia only; not graded for this specific device or for other types of hair loss). A 2025 meta-analysis of 38 studies (about 2,930 people with androgenetic alopecia) found a larger increase in hair density with light therapy devices than with placebo or sham after 4-26 weeks, but results varied widely between trials and many trials were small or funded by device makers. Goals: hair. Directory: Red light > Laser & LED hair caps.
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