Nioxin System 3 Shampoo Cleanser is specifically formulated for individuals with fine, visibly thinning, color-treated hair. This professional-grade cleanser works to refresh the scalp and remove residue that can clog hair follicles, preparing the hair environment for optimal density promotion. It delivers BioAmp for thicker-looking, fuller hair by strengthening the hair shaft and improving hair resilience against breakage. Regular use supports a cleansed scalp, which is foundational for healthy hair growth. Ideal for daily or frequent use as part of the Nioxin 3-Step System regimen to achieve visibly denser hair.