This product is for anyone looking to grow their hair as FAST as possible. Works best when used with the F.A.S.T. Shampoo. F.A.S.T. can get your hair grow up to 45% faster. For even better results try combining with the F.A.S.T. Food Supplements. The shampoo and conditioner work on the outside while the supplements work on the inside. 12 fl. oz.