Nioxin System 4 Scalp + Hair Shampoo is designed for coloured, dry and damaged hair with progressed thinning. Clinically and dermatologically tested, this gentle cleanser removes impurities and excess sebum that can clog hair follicles, helping hair appear thicker and fuller with visible results in just 30 days. The advanced formula helps reduce breakage, nourishes the scalp with antioxidants and includes UV-protecting ingredients to revitalise hair and improve scalp condition. To use: apply to the scalp, gently massage evenly through hair and rinse thoroughly.