Lock in color with this amazing fade-fighting system. Provides a weightless seal to lock in color and moisture, leaving color-treated hair looking fresh and vibrant. All Vivid Color products contain Thermacore Complex with Silk coupled with the Vivid Color Delivery System, which is a U.S. patented blend of natural copolymers that transports and delivers a greater concentration of humectants, vitamins and UV protectors, thereby maintaining color longer in the hair shaft.