Nioxins Cleanser Shampoo System 3 for colored hair with light thinning is the first step of a three part Nioxin regimen, specially formulated to amplify hair texture, providing moisture balance and color protection. It prepares hair and scalp for a complete hair thickening treatment with Nioxins three part System 3. This professional derma-purifying, color-safe Cleanser Shampoo removes dirt, excessive oil and other environmental residues from the scalp and hair.