STRENGTHEN AND MOISTURIZE hair with Nioxin System 3 Scalp Therapy Conditioner for Colored Hair with Light Thinning. This density-protecting professional hair care product with BioAmp technology helps retain moisture balance, providing hair resilience. Lightweight, Nioxin conditioner is specially designed for colored hair with light thinning and leaves it THICKER, FULLER-LOOKING. Nioxin’s SCALP THERAPY HAIR CONDITIONER is the second step of a three part Nioxin regimen, designed to strengthen the hair and amplify hair structure. Helps remove follicle-clogging sebum, fatty acids and other environmental residues.