ULTRA VIOLET: Ultra Violet is a super cool, blue-toned violet dye that can even give unbleached hair violet tones. For the most vibrant results, we recommend lightening hair to very light level 9 blonde or lighter before use. MIXABLE COLOURS AND TONES: All MANIC PANIC hair colours are safe to mix to create custom shades, making the possibilities of endless shades! Combine any formula with the manic mixer/pastel-izer to create soft, on-trend pastel hues. Ready to use, no developer required. SEMI PERMANENT HAIR DYE: This semi permanent hair dye formula gradually fades in 4-6 weeks because it does not penetrate the cortex of your hair, but simply rests on top of the hair shaft. CRUELTY FREE AND VEGAN: This colour cream hair dye features vegan ingredients tested on celebrities, not animals. Made in the USA, hair colour is PPD & ammonia-free, paraben-free, gluten-free resorcinol-free, and phthalate-free. Additional FFEATURES: Benefits of Conditioning Hair, Resealable Tub For Longer Use, Comes With Instructions Classic High Voltage Semi-Permanent Hair Dye Volume: Pack of 2 – 118 ml each Free From: PPD Free, Gluten Free, Ammonia Free, Resorcinol Free, Phthalate Free, Vegan Friendly, Cruelty Free Duration: 4 - 6 weeks Patch Test: Always perform a patch test 24-48 hours before use, following instructions on the packaging.