Neutralizes and removes yellow stains from hair while brightening hair of all colors - black, white, chestnut, bay, brown, roan, palomino. Blacks look blacker; whites are whiter. Leaves hair silky, shiny and smelling good too. Hair sunscreen added. Apply to wet hair; massage until blue suds turn white. Soak 2-5 min, rinse. Minimizes permanent yellow stain until hair re-growth begins.