Nioxin Cleanser #1 for normal to thin looking fine hair. Nioxin Cleanser helps to remove follicli-clogging sebum, fatty acids and environmental residues from the scalp skin and hair. Cleanses to provide thicker-looking hair. it is part of system 1 that contains 3 specialized technologies: bioamp, Transactive Delivery system and Activ-Renewal. 10.1 Ounces.