Stretch your dollar even further with the best shampoo for color-treated hair, like our top pick, the Kérastase Chronologiste Shampoo for Dull and Brittle Hair, which leaves hair glossy and vivid ...

and the color-safe shampoo I use to preserve my ruby-red look. After so many experiments, I know how to nurse my hair back from brittle and split to shiny and plump. And while I’ve written ...

Instead, these are hair dyes uniquely formulated for graying and meant to return you to your previously natural color.