Nioxin 1L Shampoo & Conditioner Duo System 1 is specially formulated to strengthen the hair, retaining moisture balance, providing hair resilience reducing breakage, and leaving the hair fuller looking. Nioxin System 1 Cleanser Shampoo helps to remove follicle-clogging sebum and environmental residues from the scalp and hair. Derma-purifying Color-Safe Shampoo with Pro-Collor Shield Technology helps remove follicle-clogging sebum, fatty acids, and environmental residues from the scalp and hair. Cleanses to provide thicker-looking hair. For normal - thin-looking, fine, natural non chemically treated hair. Transactive Delivery System with antioxidants, botanicals, vitamins, and purifying agents to help clean away follicle-clogging sebum and environmental residues from the scalp, leaving the scalp feeling clean and refreshed. 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. Activ-Renewal with white tea extract, peppermint oil and cleansing agents to help cleanse and provide a refreshed scalp environment and healthy shine to natural hair. Nioxin1 Scalp Therapy Conditioner is designed for normal to thin-looking, fine natural hair. The texture is amplified while maintaining a healthy shine to hair. The scalp is refreshed and revitalized. This conditioner also strengthens hair and balances moisture distribution in the area this product is applied. Helps to provide hair resilience and moisture balance control. Reduces breakage and associated hair loss. Nourishes the scalp with essential nutrients. Improves the appearance of thinning hair. Creates an environment for fuller, healthier-looking hair.