Kérastase Nutritive Mask Oleo Relax Masque is a rich, nourishing treatment designed to deeply condition and smooth unruly, frizzy hair. Formulated with advanced ingredients, it helps to tame frizz, enhance manageability, and restore softness and shine. Regular use leaves hair feeling supple, detangled, and beautifully controlled, even in humid conditions. This mask is ideal for those seeking to achieve sleek, smooth, and healthy-looking hair that is easy to style. Achieve a salon-like finish at home with this intensive care treatment.