Matrix So Silver Purple Shampoo brightens Blonde, Grey, and Silver Hair. This shampoo is designed to neutralize brassy warmth and correct dull yellow tones. It provides an illuminating effect, resulting in a shimmering, radiant glow for lighter-colored hair. The formula cleanses thoroughly while moisturizing, preventing hair from feeling stripped of natural oils. It's ideal for color-treated hair needing intense TLC and toning.