Ardell Unred Hair Color Additive (1 oz) is a salon-favorite solution designed to eliminate unwanted red tones from colored hair. It works across all hair color types—including henna, semi-permanent dyes, bleaches, and any volume of peroxide—by minimizing brassiness and enhancing color depth Softens hi-lift tintsDecreases fadingUse 10 drops for every ounce of color120 applications