System 5 is specially designed for normal to thin-looking, medium to coarse, natural or chemically-treated hair. It delivers smoothing control to hair while refreshing the scalp and restoring moisture balance. NIOXIN Scalp Treatment contains antioxidants and botanicals that help to provide a refreshed scalp environment. With antioxidants, botanicals, vitamins, and purifying agents. Helps clean away follicle-clogging sebum and environmental residues from the scalp skin, giving a clean and refreshed feeling. With white tea extract, humectants, peppermint oil, and protective conditioning agents. Dual shield technology helps provide protection and moisture balance to colour-treated hair, and leaves the scalp feeling rejuvenated and refreshed. With silk amino acids, kukui nut oil, and protective conditioning agents. Helps provide moisture balance and smoothing control, reducing hair loss by strengthening against damage and breakage Directions of use: Apply directly to the scalp before gently massaging the product in, do not rinse hair after treatment.