Allow it to dry for one minute and you’re good to go. You don’t want to go to the salon each time you see a few grey hairs pop up. Try the L’Oréal Paris Magic Root Cover Up Spray subsequent time you’ve a few stray grays to cover Beauty Tips. This lightweight, quick-dry spray will assist conceal grey roots without abandoning any sticky residue. Available in multiple shades of blonde, brown, purple, and black, this root cover up spray lasts one shampoo.