The feeling that lives rent-free in our heads? Walking out of a salon with freshly colored hair. But we demand rent from the brassiness and dullness that happens after a few weeks. That’s where ...

The best purple shampoos, according to our testers, include Amika, Kristen Ess, and IGK, and Nexxus. Our picks range in price ...

Long-lasting vibrancy starts with these color-preserving shampoos.

My hair is currently a gingery red. A week ago it was a deep chestnut brown. Before that, blue-black. Last year? Blonde, pink, blue, purple, and back to blonde. No, my hair hasn’t fallen out, but that ...