John Frieda Violet Crush Purple Shampoo is designed to provide even toning to your hair. With repeated use, extended leave on times, or on damaged, porous hair, ashy or purple tones may be visible after use. These tones are temporary. To remove, simply wash your hair with a clarifying shampoo. If necessary, repeat until any unwanted color is removed from the hair. Visit our blog for even more blonde hair tips.