What is blue shampoo? | Who should use blue shampoo ... If you have dark hair, are brunette and have red tones in your hair, ...

What is blue shampoo? | Who should use blue shampoo ... If you have dark hair, are brunette and have red tones in your hair, or have red and brassy tones, consider using a green shampoo because ...

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.

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 ...