Prepare the scalp and hair for a complete hair thickening treatment with Nioxin s three part System 5 Cleanser for Colored Hair with Light Thinning. Thanks to its Pro-Color Shield technology this professional hair product helps remove 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 is the first step of a three part Nioxin regimen designed to strengthen the hair and amplify hair structure.