Nioxin System 3 Shampoo is specifically formulated for actively colored hair experiencing slight thinning. This professional-grade cleanser works to remove product buildup, oil, and environmental residues that can clog scalp pores and weigh down the hair fiber. It smooths the hair cuticle and boosts resilience, preparing the hair to receive the full benefit of the conditioning treatment in the System 3 regimen. Regular use promotes a revitalized scalp environment and fuller-looking hair.