Professional mask with “anti-yellow” effect to maintain cool color and radiant blond of lightened and natural blonde hair. The mask is specially designed for blondes, it neutralizes unwanted yellow tones after lightening, nourishes and instantly tones into a shade of cool blond. Blue pigment effectively neutralizes yellowness, gives hair a pleasant cool shade and natural shine without damaging its structure. The hydrolyzed keratin contained in the composition provides shining shine to blond hair, and vitamin E, helianthus oil and panthenol give the necessary hydration, nourishment and protection. The mask is suitable for all hair types.