Manic Panic Hot Hot Pink Classic High Voltage Semi Permanent Hair Color Cream is a cool-toned medium pink hair dye that glows vibrantly under blacklights when bleached to the lightest level 10 blonde hair. For deeper pink hues, this can also be used on virgin, unbleached hair. The Classic High Voltage line of semi-permanent hair color conditioning creams from Manic Panic feature a range of over 50 colors that bring out bold, vivid looks for all hair types. This line of Vegan, semi-permanent hair color creams are free from parabens, gluten, ammonia, PPD, resorcinol and phthalates so you can feel good about changing up your look without any risks. Each one of our products is PETA accredited, made in the USA and d on celebrities – not animals. And, this ready-to-use, no-mix blue hair dye fades gradually with each shampoo, lasting from 4 to 6 weeks. For best results, pre-lightened hair to a level 9 or 10 using Manic Panic Flash Lightning Bleach Kits. Then, brighten your mane within minutes with this blue hair color for men and women from Manic Panic. Hair dye results do vary, though, based on base color, porosity and hair type. Avoid using on hair with more than 10% grey coverage and read instructions included with the products.