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 to help clean away follicle-clogging sebum and environmental residues from the scalp, while helping provide sun protection for the scalp. BioAMP with cystine amino acids, and lightweight conditioning and treatment ingredients; helps provide thicker-looking hair by increasing the fullness of each hair strand, and reducing hair loss through strengthening against damage and breakage. Glyco-Shield for chemically-treated hair and scalp with white tea extract, humectants, peppermint oil, and protective conditioning agents that deliver a dual shield technology to help provide protection and moisture balance to color-treated hair, while leaving the scalp feeling rejuvenated and refreshed. Apply to wet hair, gently massage into scalp and hair. Lather 1 minute. Rinse thoroughly. Use daily.