Manic Panic Classic High Voltage Voodoo Blue is a deep teal-blue shade with mysterious green undertones, perfect for magical, moody colour transformations. On pre-lightened hair, it reveals a rich, oceanic blue-green with striking depth and dimension. Its gentle formula is vegan, PPD-free, ammonia-free, and peroxide-free, helping hair remain smooth and hydrated while delivering radiant colour. Key Benefits: Style: Classic Semi-Permanent Hair Dye Color: Voodoo Blue Color Description - Dark Cyan Blue Hair Dye Volume: 4oz / 118ml Ingredients: Vegan Friendly, PPD Free! Additional Features: Benefits of Conditioning Hair, Resealable Tub For Longer Use, Comes With Instructions Duration: 4 - 6 weeks For Best Results: See Instructions Tab How to use: For a vivid teal-blue finish, pre-lighten hair before applying. On darker or unbleached hair, it will appear more subtle and deeper in tone. For the brightest result, lift hair to level 8–10. Wash using a clarifying shampoo. Avoid conditioner. Dry fully. Apply Voodoo Blue evenly. Comb through to saturate. Cover with cap. Apply gentle heat. Process for 30–45 minutes. Rinse and style. Available in 118ml.