For brunettes with highlights, blue shampoo should be a non-negotiable for keeping your color fresh and brass-free for months. Purple shampoo is a blonde’s best friend. The violet formulas work to ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Like all hair colors, brunettes can experience fading, brassiness, and an overall lack of vibrancy.

And which one should I use? Whether you get highlights, a single process, or just your roots done, it always feels incredibly good to leave the salon with freshly colored hair. But then the anxiety ...