Cream Formula for Semi-Permanent Hair Colour. Vegan Friendly & Cruelty Free! Manic Panic, with 40 years of history in leading the colour rebellion, is proud to say their hair colours have always been Vegan and Cruelty Free. And their products are also: Paraben-free, Gluten-free, Ammonia-free, Resorcinol-free, PPD-free, Phthalate-free, & Made in the USA. Purple Haze is a warm, very dark purple hair dye that leaves purple tones on virgin, unbleached hair. For best results, we recommend lightening hair to medium level 7 blonde or lighter before use. Style: Classic Semi-Permanent Hair Dye Colour: Purple Haze Colour Description – Warm Dark Purple Hair Dye Additional Features: Benefits of Conditioning Hair, Resealable Tub For Longer Use, Comes With Instructions Duration: 4 – 6 weeks