This Nioxin 3-Part System 1 is expertly formulated for natural hair with light thinning. It is designed to cleanse, optimize, and treat the scalp and hair environment to deliver thicker, fuller-looking hair. By using the complete three-step system, you can nourish hair growth while reducing hair breakage associated with thinning. Use this set as a comprehensive daily regimen to promote scalp health and improve the appearance of thinning hair.