Osmo Colour Save Radiance Mask (100ml) is a nourishing salt and sulphate free mask that is designed specifically for colour treated hair. This mask works to extend the life of your colour by reducing fade whilst simultaneously giving your hair added health plus vitality. Smooths each hair cuticle and builds strength and shine in your hair. Directions of use: Apply to towel dried hair from mid lengths to ends and leave for 3–5 minutes. For a more intense treatment, allow an extra 7–10 minutes before rinsing thoroughly. Adding heat will intensify the treatment.