About This Dual light therapy - Our laser hair red light can promote blood circulation and hair follicle activity, while blue light promotes scalp health. Target audience - Laser therapy hair growth comb is indicated to treat Androgenetic Alopecia, and promote hair growth in females who have Ludwig (Savin) I-4, II-1, II-2, or frontalpatterns of hair loss and in males who have Norwood Hamilton Classifications of IIa to V and who both have Fitzpatrick Skin Types I to IV. Ergonomic design - Our hair adopting a comfortable wide toothed comb structure that can slide smoothly in the hair while ensuring uniform light exposure. Rechargeable and Portable - Equipped with a USB-C rechargeable battery, suitable for cordless use, it is an ideal choice for home or travel. Head massage - Our laser hair equipped with 1-9 levels of intelligent intensity control, with light touch switching, from gentle massage to strong finger pressure, comprehensively taking care of your head sensation. Overview Brand : CWTUL Color : white Bristle Material : Silicone Handle Material : Plastic Product Benefits : Hair Growth, Scalp Health, Head Massage