What it is: The Color Lasting Treatment Shampoo contains a combination of Shea butter, cotton and silk proteins which aids in softening the hair which will coat it with a protective layer and sealing split ends. What it does: Vitamin B6 is added to rejuvenate the hair; while active proteins are used to improve the texture of the hair. What else you need to know: The low PH level ensures that the hair will remain sealed and prevent the loss of active pigments while shampooing.