The Kérastase Blond Absolu Bain Ultra Violet Shampoo is specially formulated to neutralize unwanted brassy and yellow tones in blonde hair. This purple shampoo offers a targeted solution for color-treated or lightened hair, helping to maintain a cool, vibrant blonde. Regular use keeps your blonde shades looking fresh and beautifully toned between salon visits. Ideal for anyone seeking to preserve the clarity and brilliance of their light hair color.