Enhance the look of natural gray hair with Matrix Total Results So Silver Purple Shampoo. Since gorgeous gray lacks pigment, unwanted yellow tones might show up, but this clarifying shampoo takes care of that. It cleanses hair to get rid of buildup, while neutralizing unwanted brassy warmth so sexy, smoky, cool-toned gray color is revived. It also illuminates highlights on blondes, and adds shimmering brightness to color-treated and natural hair, from grey to white.