Marisa Tomei has a very simple haircare routine, but she can't go without this root touch-up stick for gray hairs — more!

It’s a color technique that works to seamlessly blend your natural hair with lowlights ... a more natural transition between colored and gray hair. It’s an ideal low-maintenance option ...

So, if you're not yet ready to blend and embrace gray hair, or you're just curious about how and why hair changes as we age, we've got you covered. “There are many factors at play [with graying ...