ACHIEVE BRIGHTER, COOLER BRUNETTE - This blue conditioner works with Blue Crush shampoo that utilizes basic and nitro dye technology to crush brassy tones FORMULATED WITH CRUSHED BLUE PIGMENTS -The Blue Crush System is made of Crushed blue pigments to cleanse and neutralize strands while moisturizing and nourish for a cool brunette tone MINIMIZE STAINING - The Blue Crush Shampoo Conditioner is formulated with a tri-dye blend and a dual penetration system to maximize hair penetration and minimize skin penetration This means no bathroom staining and no need to use gloves with this blue hair conditioner! REVIVES MOISTURIZES BRUNETTE HAIR - Transform stubborn brassy tones while achieving alignment, shine, and smoothing! SAFE FOR DYED HAIR OR NATURAL BROWN HAIR - A conditioner for color treated hair and natural hair Peroxide-free, ammonia-free