Chlorimed is a delicate purifying shampoo that removes impurities from the hair, including chlorine; all medications; iron; sulfur; copper; chemicals contained in hard water, tap water, & hot tub water; in addition to minerals contained in acid rain. All of these impurities attach themselves to the protein of the hair, which can cause the hair to become dry, brittle, and damaged, which may result in breakage. It is necessary to remove any impurities to achieve healthy hair and restore your natural sheen.