Purple shampoo is a popular product for people with blonde hair (especially those with dyed blonde hair) as it neutralizes ...

Before using a purple shampoo, wash your hair with a clarifying shampoo. This will help remove any existing product buildup, which could prevent the purple shampoo from properly absorbing.

You don’t have to apply purple shampoo all over your hair — concentrate it where you find brassiness. For more effective results, you can opt to follow up with a purple conditioner. Allow the product ...