She was especially impressed by how well this purple shampoo neutralized the brassy tones in her hair and gave it a healthy sheen, almost as though she’d spritzed on one of our favorite shine ...

As the name suggests, purple shampoo uses violet pigments to tone ... It has a 4.6-star average rating from over 700 reviews on Amazon. Recommended frequency: every wash for silvers and grays ...

That's where purple shampoo, which is kind of a ... platinum and blonde hair alike all left nothing but promising reviews about this shampoo, that doesn't leave hair feeling heavy yet instead ...

This deep purple shampoo, which has a 4.6-star average rating from 2,400 reviews on Amazon, helps repair damaged hair while neutralizing unwanted warm or brassy tones, according to the brand.

Andie MacDowell's secret for maintaining her vibrant and voluminous gray locks is in this under-$20 L'Oréal Paris purple ...

Blue shampoos replace orange undertones with cooler brown shades. We tested the market leaders in our beauty lab to find the best for brunettes. Shop now.