This shampoo is designed to balance out grey hair american crew classic gray shampoo gets rid of brassy and yellowing tones which left untreated can be distracting and downright irritating with the addition of hydrolized milk protein hair is left stronger thicker and much smoother than before with this protein coarse or wiry hair will no longer be a problem hair is softened with a smooth shiny look and feel american crew classic grey shampoo works just as well to uneven copper and bras