Nioxin System 4 Cleanser for noticeably thinning, fine, chemically treated hair. A volumizing cleanser that helps remove follicle-clogging sebum, fatty acids and environmental residues from the scalp and hair. Cleanses to provide thicker-looking hair. Technologies: Scalp Access Delivery System with vitamins, botanicals, SPF 15 sunscreen, and purifying agents. BioAMP with cystine amino acids, and lightweight conditioning and treatment ingredients. Glyco-Shield for chemically-treated hair and scalp with white tea extract, humectants, peppermint oil, and protective conditioning agents. Use Apply to wet hair, gently massage into scalp and hair. Lather 1 minute. Rinse thoroughly. Use daily.