Nioxin System 4 Colored Hair Progressed Thinning Kit is a comprehensive hair care solution designed for individuals with colored hair and progressed thinning. This kit includes a color safe cleanser shampoo, color safe scalp therapy conditioner, and color safe scalp and hair treatment that work together to help hair appear thicker while also protecting against damage and breaks. The nourishing formula of the kit helps to prevent hair loss and strengthen strands by nourishing the scalp. With regular use, Nioxin System 4 Colored Hair Progressed Thinning Kit can help you achieve healthier, fuller-looking hair.