Princess Charlotte's drawing of her mom is just as colorful (we're talking green, blue, and purple hair plus yellow eyebrows) ...

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 ...

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 ...