Thinning hair can be a stressful problem especially if you have very fine, thin hair which is notable for being weak and prone to breakage. Nioxin Cleanser System 1 has been specially designed for thin to normal, natural hair. It amplifies the hair texture, strengthening the hair whilst protecting hair from damage and breakage, leaving scalp refreshed and hair with a natural, radiant and healthy shine. Nioxin System5 Cleanser Shampoo is a derma-purifying, anti-hairloss and anti-breakage shampoo for slightly thinning chemically treated hair. Frees the follicles clogged by sebum, dirt, styling residues, fatty acids and impurities due to external agents. Its formula with Pro-Color Shield Technology deeply moisturizes the hair. It is designed to act in synergy with Nioxin System 5 Scalp therapy Revitalizing Conditioner, Scalp & hair treatment and give more body, thickness and density to slightly thinning chemically treated hair.