Edge Serum Follicle Enhancer has been specifically designed to help your hair and scalp recover from the daily stresses of life. This multi-purpose hair treatment can be used as a pre-shampoo treatment to smooth the surface of your hair and scalp, and reduce breakage. It can also be used as a post-shampoo treatment to help stimulate the growth of new hair follicles, leaving you with a thicker, more healthy mane.