Thinning hair doesn’t stand a chance with Nioxin System 4 products in the picture! Nioxin’s System 4 Kit is formulated for color-treated hair with progressed thinning and helps promote denser-looking hair while restoring moisture balance. Purchase the full System 4 Kit complete with Cleanser Shampoo, Scalp Therapy Conditioner, and Scalp & Hair Treatment, or shop for System 4 shampoo and conditioner separately. Looking for more Nioxin products? Explore Systems 1, 2, 3, 5, and 6, professional accessories, styling products and more.
