This intensive Hair Mask from the Kerastase Blond Absolu line is specially formulated to neutralize undesired brassy and yellow tones in cool shades of blonde hair. Its rich, nourishing formula works to deeply condition and strengthen sensitized blonde fibers, leaving hair feeling soft, manageable, and vibrant. Regular use helps maintain the desired cool, icy tone between salon visits, ensuring your blonde remains bright and flawless. Ideal for anyone with highlighted, bleached, or naturally light hair seeking tone correction and intense hydration.