Keep your colored hair flawless even if you should already visit the salon! The Color WOW Root Cover Up for regrowth and gray hair covers gray roots, fills in sparse areas, or extends highlights with a temporary, water-resistant color. You can even go to the pool with the corrector, as it washes out with shampoo. With the compact content, you can correct regrowth for a period of 6 months to 1 year.