Color sealing for Elumen colored hair. Benefits Seals the hair color after dyeing Locks the color pigments deeper into the hair Removes excess color pigments from the surface of the hair Reduces fading of Elumen hair color Ensures longer lasting color result The intense and brilliant color and shine How to use Apply about 40 ml of LOCK onto towel-dried hair immediately after coloration with Elumen hair color and distribute evenly. Leave for 5 minutes. Then rinse thoroughly.