"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Hair color trends come and go, but even when grown-in roots are trending, there’s still a camp that wants ...

So you’ve been busy, and that may mean it’s been a while since you’ve had a chance to touch up your hair color. Thankfully, with the best root touch-up products, you can easily conceal grown-out roots ...

To wit: Justine Marjan, stylist for Gwen Stefani, calls root touch-ups a “game changer” for keeping color fresh at home. Kim Kardashian’s stylist Chris Appleton is also a fan, and says that a good ...