Designed to help strengthen thinning, lifeless strands by stimulating the scalp and revitalizing follicles, FAQ™ 301 uses clinically proven power of red LED light and T-Sonic™ massage to enhance absorption of liquid hair growth treatments, and to loosen any buildup, sweat, and oil from clogging hair follicles while stimulating blood flow so oxygen - improving both scalp and hair health overall, for noticeably thicker and longer strands.