Nioxin System 3 Shampoo is specially formulated to cleanse and revitalize hair that is colored and subtly thinning. It works to remove build-up that can clog follicles while delivering essential hydration to the hair and scalp. This daily-use shampoo helps to provide thicker-looking hair by strengthening the hair shaft against breakage. It is an integral step in the Nioxin 3-part system designed for noticeable density improvement.