I have dark brunette hair with lighter brown balayage which has become a bit brassy. Can anyone recommend what products to tone down the brassiness?
I am tempted to try Redken Color Extend Brownlights Shampoo and Conditioner, but the downside is that the shampoo is not sulphate free, I thought I should be avoiding sulphates to extend life of the colour in my hair. Or is it more advantageous to have a sulphate containing product which is great at toning?