Kerasilk ultra rich keratin care daily intense mask precious keratin and silk proteins. provides straight, sleek looks.won't weigh hair down. supports the keratin treatment effect with kerashape technology. moisturize your hair with the richest care of goldwell kerasilk for extremely dry, damaged and unmanageable hair.directions distribute the intense mask through shampooed hair, leave on for 5-10 minutes, rinse thoroughly.