Nioxin System 4 Scalp + Hair Shampoo

Nioxin System 4 Scalp + Hair Shampoo is specially formulated for color-treated, dry, and damaged hair with progressed thinning, delivering a deep cleanse that removes follicle-clogging impurities, excess oil, and environmental buildup. This purifying shampoo helps to refresh the scalp, protect color vibrancy, and improve the overall health of thinning hair. It also supports stronger, fuller-looking strands and preps the hair and scalp for optimal absorption of the accompanying conditioner and leave-in treatment. Ideal as the first step in the complete 3-part System 4 regimen for visibly denser, more resilient hair.