Brite Silver Colour Shampoo builds silver shades, one moisturising shampoo at a time. Colour will be most vibrant on light, highlighted, or grey hair. Daily use will build and intensify colour. Fade by washing with your normal shampoo. As this is an ash grey, you may need to tone any warm (yellow) colours out of your hair first (with a purple shampoo) so you don't get those pesky ash (green) tones. Hydrating, Cruelty-Free and Colour Building.