Nioxin System 4 is a complete hair care range specially formulated for natural to visibly thinning, chemically treated hair. Comprising a shampoo, conditioner and treatment, System 4 aims to gently cleanse, moisturize, strengthen hair resilience, improve the texture of fine hair and promote hair density. It is specially designed to create an optimal environment on the scalp, stimulate hair growth and maintain stronger, denser, more resilient hair. System 4 is particularly suited to people with slightly thinning, chemically treated natural hair. Set contains: System 4 Cleanser Shampoo 150ml Scalp Therapy System 4 Conditioner 150ml Scalp Treatment System 4 40ml