L'Oreal Paris Magic Root Cover up, Black 

Need a quick root touch up to cover gray hair? Try Magic Root Cover Up. This temporary hair color spray is our quickest way to cover gray and works on any hair texture or type including synthetic hair. In just 3 seconds gray roots are concealed with our light-weight, quick dry formula leaving no smudging or sticky residue when dry. One application of black root coverup will last until your next shampoo, plus it’s ammonia-free, peroxide-free, and contains no synthetic dyes.