Nioxin System 1 Scalp + Hair Shampoo – Hair Thickening Shampoo for Natural hair with Light Thinning. Clinically and dermatologically tested, this shampoo nourishes and gently cleanses your hair to prevent against follicle-clogging sebum, resulting in thicker, fuller hair. Key benefits:- Clinically designed to add thickness and fullness to natural hair with light thinning, with visible results in just 30 days- Gently cleanses the scalp, removing impurities and excess sebum that can clog hair follicles, creating a healthier environment for the scalp- Helps minimize hair breakage, promoting the appearance of fuller, thicker hair- Infused with antioxidants and uv protecting ingredients, the kit includes a leave-on treatment which can nourish and revitalize the scalpTo use:Apply shampoo to scalp and gently massage evenly. Rinse thoroughly.