Paris Hilton has a classic example of a shadow root, with darker dirty blonde or brunette roots blending into platinum blonde locks. Though most of her hair is much lighter than her roots ...

“Caramel hair color requires some maintenance to keep ... offer a bold contrast to her caramel base tones, while a shadow root tricks the eye into believing the color is au naturale.

These stylist-approved products will camouflage the dreaded grow-out so you can sneak a few more weeks between appointments.

But that’s not the only way. A shadow root, which involves applying a slightly darker color to the root, helps to soften the stark difference between natural roots and colored hair. “The darker roots ...