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