GUILT-FREE GLAMOUR!® Voodoo Blue is a dark cyan hair dye with green-ish undertones. Voodoo Blue can give hints of teal to virgin, unbleached hair. For the most vibrant results, we recommend lightening hair to a very light level 9 blonde and toning hair to prevent unwanted tones. Also available in our Classic High Voltage Cream Formula! WEAR IT LOUD!® * Style: Amplified 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, Longer Lasting Formula with 30% More Pigment * Duration: 4 - 6 weeks * For Best Results: See Instructions Tab  Tested on celebrities, not animals™