Clairol Root Touch-Up Temporary Hair Color Powder Black 40-60 Applications. Never see a gray again! Temporary root touch-up concealing powder quickly covers grays on the go. It blends in naturally with your existing shade so you can easily conceal single strands touch up your temples refresh your root line or even define your eyebrows. It s a perfect spot treatment in between coloring that works in just seconds. Keep it in your purse to refresh your roots at any time.