Color-depositing shampoos add specific pigments (either purple, blue or green) onto the hair shaft to maintain your desired color. Based on color theory, blondes should use purple shampoos ...

Color Depositing Purple Shampoo: A professional salon shampoo for color-treated or chemically-treated hair, including bleached hair. Neutralizes brassy, yellow and orange undertones Benefits ...

So for blondes, I’ve found shampoos with purple-depositing formulas to fight brassiness. As the sun can fade color, I’ve also looked for ingredients that provide UV protection (like vitamin C ...