eCosmetics is an authorized retailer of DS Laboratories. Revitau00ae hair growth support tablets are a physician-formulated nutraceutical featuring a unique blend of clinically effective ingredients for visibly thicker hair growth with fuller scalp coverage. A proprietary blend featuring Zinc that promotes protein synthesis and helps along with biotin which converts nutrients to energy and aids in the maintenance of hair. Keratin provides strength and improves hair flexibility while iron delivers oxygen to the hair root and helps maintain hair fullness, promoting healthier hair growth with no compromise. For best results, use daily.