Used by professionals. With Fade Block Technology. Use with color lock treatment to retain color longer! (Consumer perception when using ColorTHRIVE shampoo, conditioner and color lock in creme or spray vs ordinary shampoo and conditioner [color loss due to washing of hair].) Breakthrough technology! Prolongs the life of your color treated hair! Breakthrough Technology: Introducing ColorTHRIVE, with Fade Block Technology, an exciting new system that helps block your hair color from fading, prolonging the life of your color treated hair. Uniquely Formulated: Non-color depositing formula specifically for blondes to reduce discoloration due to mineral deposits and enhance shine. Professional. Affordable. This product is not tested on animals. Made in USA.