Purple shampoo has become one of the most misunderstood products in haircare. Some people swear it saved their blonde, others say it dried their hair out or did absolutely nothing. The truth sits ...
Purple shampoo aims to remove yellow or brassy tones from hair by depositing a small amount of violet pigment on it during a wash. Companies often market it to those with blonde or lightened hair.
Plus a briefer on why hair goes brassy to begin with.