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

I love Olaplex No.4P because it helps keep my highlights fresh and ... neutralise yellow tones on blonde and grey hair. If you're searching for a subtle purple shampoo, this one isn't for you.

Before using a purple shampoo, wash your hair with a clarifying shampoo. This will help remove any existing product buildup, which could prevent the purple shampoo from properly absorbing.

As mentioned, purple shampoo is an at-home toning product recommended for those with blonde and gray hair or highlights. More closely, purple shampoos contain purple pigments that neutralize ...

The formula highlights hydrating hyaluronic ... What a reviewer says: “I have naturally gray/white hair. This shampoo works better than any other purple shampoo I’ve tried, and I’ve tried ...