Nioxin System 5 Cleanser: 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. Nioxin System 5 Therapy: Strengthen and moisturize your hair with Nioxin's three part System 5 Scalp Therapy Conditioner for Chemically Treated Hair with Light Thinning. Thanks to its Smooth Plex technology, this professional hair care product helps retain moisture balance and provides smoothing control. Lightweight, Nioxin conditioner is specially indicated for chemically treated hair with light thinning and leaves it thicker, fuller-looking. Nioxin's density-protecting Scalp Therapy Conditioner is the second step of a three part Nioxin regimen, designed to strengthen the hair and amplify hair structure.