WHAT IT IS Violet shampoo that cleanses and maintains the hue of cool blond highlighted bleached or gray hair. WHAT IT DOES Neutralizes unwanted yellow or brassy tones with a high level of violet dye. WHAT ELSE YOU NEED TO KNOW This violet shampoo will create a brighter tone to your light colored hair canceling out yellowness created by oxidation. Plus it will add strength and protect your hair from environmental and physical damage. NOTE Some may choose to use every other time they shampoo alternating with Color Endure Shampoo