- System 2 is specially designed for noticeably thinning, fine, natural hair. It delivers denser-looking hair and a healthy shine while protecting the scalp. System 2 delivers denser-looking hair while strenghtening against damage. Contains antioxidants and botanicals that help to provide a refreshed scalp environment. BioAMP: Cystine amino acids and lighweight conditioning and treatment ingredients increase the fullness of each hair strand, reducing hair loss by strenghtening against damage and breakage. Activ-Renewal: White tea extract, peppermint oil and cleansing agents help provide a refreshed scalp environment and healthy shine to natural hair. Scalp Access Delivery System: Vitamins, botanicals, SPF 15 sunscreen, and purifying agents help clean away follicle-clogging sebum and environmental residues from the scalp skin, while providing sun protection for the scalp. Part 3 of 3 part system. TREAT: Apply directly to entire scalp. Gently massage into scalp. Do not rinse. May cause temporary redness to scalp skin after application.