The Bain Ultra Violet Shampoo from the Kérastase Blond Absolu line is specifically formulated for blonde hair. This purple toning shampoo effectively neutralizes unwanted brassy and yellow undertones, maintaining the cool, vibrant shade of blonde, silver, or grey hair. Its advanced formulation works to protect color integrity while gently cleansing and caring for sensitized blonde fibers. Ideal for regular use to keep cool tones looking fresh between salon visits.