hydrating protective shampoo for color-treated hair milk_shake color maintainer shampoo is ideal for maintaining the beauty and vitality of colored hair. It contains milk protein that deeply reconstructs hair, and special conditioning and hydrating agents that sooth and condition both scalp and hair. z.one concept's exclusive ingredient, Integrity 41, improves and extends hair color life. This shampoo has a pleasant fragrance of sweet milk, and leaves hair shiny, vital and conditioned.