Scalp + Hair Thickening System 4 Shampoo - 16.9Oz

Nioxin's Pro Clinical System 4 is a clinically and dermatologically tested shampoo designed to address hair thinning. It works by gently cleansing and nourishing your hair, helping to prevent the buildup of follicle-clogging sebum. This formula is specifically made for dry, damaged, and color-treated hair, and is designed to leave you with thicker, fuller-looking hair. Size:16.9oz