Nioxin's cleanser shampoo System 5 is for bleached/ chemically treated hair with light thinning is the first step of a three part Nioxin regimen, specifically formulated to strengthen the hair and amplify hair structure.  This professional derma-purifying cleanser shampoo removes dirt, excessive oil and other environmental residues from the scalp and hair.

• size: 10.1 fl oz, 33.8 fl oz