No Yellow Anti-Yellow Mask Suitable for blonde, super-lightened, bleached or gray hair. Formulated with purple pigment that attenuates unwanted yellow tones. Leaves hair with a cold tone, soft, shiny and silky. Use: After washing hair with Anti-Yellow Shampoo, wear disposable gloves and apply to towel-dried hair on lengths and ends. Leave for 3 to 5 minutes. Rinse thoroughly.