Prepare your scalp and hair for a complete hair thickening treatment with Nioxin\'s 3-part System 5 for Chemically Treated Hair with light thinning. Thanks to the Glyco-Shield 2.0 technology, this professional hair product removes sebum, fatty acids and other environmental residue from the scalp and hair. Nioxin\'s derma-purifying shampoo deeply cleanses the scalp and provides thicker, fuller-looking hair. Nioxin\'s cleanser shampoo is the first step of a 3-part Nioxin treatment, designed to strengthen the hair and amplify hair structure.