TRESemmé Color Enhancing Mask Dark Brunette is the answer to keeping your hair color looking great between salon appointments. Our professional quality product with efficient color pigments refreshes your color without damaging the hair and is suitable for natural or colored hair, highlights, balayage and ombre. Instead of causing a chemical reaction at the core, the color pigments adhere to the surface of the hair. Enhanced with UV filter and argan oil, this nourishing mask delivers a brilliant color boost and brilliant shine between colorings or salon visits in just minutes. This hair mask is ammonia and peroxide free and is intended to be used on the same hair color to enhance hair. The effect is noticeable for a long time.