The Manic Panic Amplified semi-permanent hair color has 30% more pigment than High Voltage Classic hair color from the same brand. This formula is not meant for those with commitment issues, as it will last through a few washes. This stronger and longer-lasting formula is available in many of the brand’s best-selling shades. The name and color are the same, but with intensity added, the Amplified version of this vegan hair color will stay brighter longer. Long-lasting does not mean added chemicals, and you can rest assured that the Amplified formula is PPD and ammonia-free. As with all of Manic Panic’s hair coloring products, Amplified is tested on celebrities, not animals, and is always vegan and cruelty-free.Features: Semi-permanent hair dye that lasts through a few washes Contains 30% more pigment for more vibrant colour Colour stays brighter and lasts longer May last up to 6-8 weeks with proper hair care PPD and ammonia-free formula Vegan and cruelty-free Works best on pre-lightened hairAbout the Brand: Vegan and cruelty free since 1977, Manic Panic is the trailblazing beauty brand that started the vivid hair color revolution in the USA over 4 decades ago. Their mission has been to share their rainbow vision of Peace, Love and Glamour throughout the universe while staying true to our core beliefs. You can always expect the highest quality and integrity from anything that bears the Manic Panic name. For 43 years, Manic Panic has been fiercely and independently women owned and operated by founders/sisters/singers/philanthropists Tish and Snooky Bellomo. From its glam, punk, and rock roots to its iconic position today in pop culture and fashion, the original Badass Beauty Brand invites everyone to unleash your inner rainbow.