Treat your hair & scalp with the Nioxin 3-part System 1 Cleanser for Natural Hair with Light Thinning. Step one of a tri-phase treatment, the derma-purifying shampoo offers a deep cleanse, while helping to strengthen the hair structure. Powered by active renewal technology, the formula works to remove sebum, fatty acids & other environmental residues. Ideal for thinning hair, the shampoo is designed to promote thicker & fuller-looking strands.