Manic Panic Toning Purple Shampoo 236ml The shampoo helps maintain, grey, purple and blue hair and reduce the appearance of brassy, yellow tones. The shampoo can be used to tone the hair, before you apply a Manic Panic hair dye. Manic Panic started the vivid hair colour revolution in New York back in 1977. They changed the world with their creative, vibrant and electrifying semi permanent hair colours. This world famous hair colouring brand is used by countless celebrities, models, and celebrity stylists. Using superior ingredients in these high quality rich formulas that are guaranteed Vegan and PPD free. The Cruelty-free colours promise a healthy nourished result.