All the products are used on dry hair. Some are sprays, some are markers and others are packaged like lipstick or paint on with a brush. They are all supposed to wash out when you shampoo.
Panelists tried them to see how well they matched their hair color and how well they covered the gray.
The panelists found most worked well. They particularly liked Oscar Blandi Pronto Colore, for $23. It did a good job covering grays and comes in a range of colors that matched well. And a close runner-up is the Roux ‘Tween Time for $8, which comes in five shades. You wet the crayon-like tip to apply.
Consumer Reports has one caution about some of the other root touch-ups. Those with spray applicators can make your scalp extremely cold. So follow the instructions carefully and don’t spray them for too long or too close.