Will Color Reviving Gloss Cover my gray roots? September 02, 2020 05:46 Updated Color Reviving Gloss will not offer any gray coverage. Related articles What is Color Reviving Gloss? What is the difference between The Great Cover Up Root Touch Up & Brow filler and Root Reboot? Can I use Color Reviving Gloss on mostly white or gray hair? Should I wash my hair before coloring? What if I already color with a different brand and want to match that shade?