Prepare your hair & scalp for treatment, with the Nioxin 3-part System 2 Cleanser Shampoo for Natural Hair with Progressed Thinning. Part of a 3-part system, the ultra-cleansing shampoo offers a deep & thorough purification, without leaving locks stripped or dry. Infused with the brand’s ingenious Active Renewal Technology, the shampoo works to eliminate excess sebum & fatty acids, reducing build-up caused by external aggressors. Ideal for people with thinning hair concerns, as the 3-step treatment helps to strengthen & offer durability.