Hair Care Products
Laser Cap for Hair Growth, FDA Cleared Blue & Red Light Therapy Hat for Hair Regrowth with 236pcs Lamp, Anti Hair Loss Therapy for Women and Men, 5-60 Minutes Adjustable
Red & Blue Light: 620nm-630nm Gentle red light helps Red light can promote blood circulation, promote hair follicle metabolism, so it can promote hair growth. Meanwhile, 460nm blue light works to regulate the sebum secretion. Used together...
https://www.bizrate.co.uk/haircareproducts/laser-cap-for-hair-growth-oid40154099891.html