Nioxin System 4 Scalp + Hair Thickening Shampoo for Colored, Dry, & Damaged Hair with Progressed Thinning | Maintain Vibrant Color | Cleanse, Nourish & Boost Hair Density with Niacinamide & Biotin Nioxin System 4 Scalp + Hair Thickening Shampoo for Colored, Dry, & Damaged Hair with Progressed Thinning | Maintain Vibrant Color | Cleanse, Nourish & Boost Hair Density with Niacinamide & Biotin from Nioxin in Shampoos. This partner product page summarizes key product facts, images, package details and purchase options for comparison. Highlights 85% of consumers noticed a thickening effect, 80% noticed an increase in hair density, 80% noticed an increase in hair fullness Thickens the hair: Nioxin System Kit 4 is clinically designed to add thickness and fullness to dry, damaged, color-treated hair with progressed thinning, with visible results in just 30 days. Supports scalp health: The advanced formula of Nioxin System Kit 4 gently cleanses the scalp, removing impurities and excess sebum that can clog hair follicles, creating a healthier environment for the scalp. Reduces hair thinning: By strengthening hair resilience, Nioxin System Kit 4 helps minimize hair breakage, promoting the appearance of fuller, thicker hair while protecting the hair color. Nourishes the scalp: Infused with nourishing botanicals, antioxidants, and UV protecting ingredients, this kit's Scalp + Hair Thickening Treatment can nourish and revitalize the scalp, improving its overall health and condition. Product Details Brand: Nioxin Category: Shampoos Department: Beauty & Personal Care / Hair Care / Shampoo & Conditioner / Shampoos Customer rating: 4.6/5 from 8537 reviews Buyer demand: 100+ bought Availability: This item cannot be shipped to your selected delivery location. Please choose a different delivery location. Prime eligible: No Source ASIN: B001390336