Plus, it's safe to use on all hair types and textures including color-treated hair. The GH Beauty Lab evaluated this touch-up ...

If your grays are particularly stubborn, use a highly pigmented, opaque touch-up powder or spray.” —Sami Knight, celebrity hair stylist Concealing grown-out roots of any color can seem ...

From sprays and crayons to powders and hair mascara, we round up the best products for a root touch-up at home ... this Charles Worthington root spray lasts up to an impressive 72 hours ...