That's where purple shampoo ... clean slate before applying,” Bertucci says. This aptly-named shampoo works to improve upon the blonde tones in your hair by flushing away brassiness and ...

Why We Love It: Even though our tester Mary gets her dirty-blonde hair highlighted ... purple shampoo she has used, but it's also the fastest to work, making a big difference after just one ...

If your hair is naturally blonde, color-treated blonde or gray, experts recommend adding a color-depositing shampoo ... other purple shampoos, this one leaves their hair feeling soft after ...