Renessence Follicle Forever shampoo and conditioner were developed and formulated by doctor Greg Brown. This gentle cleaner will leave the follicles feeling clean but not stripped. Both the shampoo and conditioner were built with hair health in mind, using molecular technology proprietary to the brand. The Follicle Forever serum is amazing for any density issues. If the hair is thinning throughout or at the hairline or crown, this preventive product will resurrect dormant follicles that haven't left the party yet.