Rexsol Revitalizing Shampoo Gently cleans scalp and hair follicles of excess sebum and cholesterol stimulated by dihydroxytestrone, one of the factors believed to cause baldness. Special ingredients penetrate the heir shaft, help seal the cuticle, and protect hair from "wear and tear." It nourishes hair follicles while leaving scalp moist promoting healthy-looking hair. For all hair types.