Color Wow Color Security Shampoo is a 100% clean. sulphate-free shampoo for coloured hair that leaves no residues behind. just fresh. healthy. vibrant hair. Unlike typical shampoos that contain thickening. conditioning. or anti-frizz agents that can build up and weigh hair down. this Color Wow shampoo rinses off completely. ensuring optimal scalp health. healthy hair growth. and vibrant hair colour. Perfect for all hair types. including extensions.