The secret to growing your hair long FAST! This product has been used by chemotherapy patients to help their hair grow faster, but works on everyone! F.A.S.T is a two-product system consisting of a faster hair growth shampoo and an amino acid rich conditioner. The system is fast and easy to use. Simply wash your hair every day with F.A.S.T shampoo, rinse well, and REPEAT for faster growing hair.