This specialized Cleansing Shampoo is formulated by Nioxin to address the needs of fine, natural hair that is showing signs of slight thinning. It effectively cleanses the scalp and hair, removing residue that can clog follicles and impede hair health. Regular use prepares the hair environment for optimal thickness and fullness. Designed as the first step in the comprehensive Nioxin System 1 regimen, it provides a foundational clean necessary for achieving the brand's signature densifying results.