Sytstem 4 was developed especially for fine, chemically treated hair with visibly decreasing hair density. A three-part system that cleanses and cares for scalp and hair in an optimal way.
The Nioxin Cleanser Shampoo 4 helps to free scalp and hair from sebum and impurities. For stronger and fuller looking hair.
Work into damp hair, massage gently into hair and scalp. Rinse well. Then use Nioxin Scalp Revitaliser.