This professional-grade brightening shampoo is specifically formulated to neutralize brassy or yellow tones in silver, gray, white, blonde, or highlighted hair. It provides gentle cleansing while actively enhancing the brilliance and clarity of cool tones. Utilizing advanced technology, this formula helps maintain the vibrancy of color-treated hair, offering protection against thermal damage and environmental aggressors. Ideal for regular use to keep cool shades looking pristine and radiant.