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.

Before we begin, there are a few things you should know about me. First, I’m 28, rapidly approaching 29. Second, I have jet black hair. Both details matter because I’m officially at the age where my ...

Purple shampoo is a color-correcting toner that reduces brassiness and harsh yellowing in blonde, white, gray, or silver hair. If you dye your hair blonde, purple shampoo may help your hair maintain ...