This Nioxin System 4 Shampoo Cleanser is specifically formulated to address the needs of fine, color-treated, and thinning hair. It works to deeply cleanse the scalp, removing impurities and buildup that can impede hair growth while delivering essential nourishment to the hair strands. Its advanced formula is designed to refresh the scalp environment and provide thicker-looking hair by reducing breakage. Regular use supports stronger, fuller, and more vibrant looking hair for those experiencing color loss and thinning. Ideal for daily cleansing, this shampoo prepares the hair to better receive the subsequent treatments in the Nioxin System 4 regimen.