GUILT-FREE GLAMOUR!® Blue Steel is a cool, silver hair dye with blue undertones. For best results, we recommend lightening hair to the lightest level 10 blonde and toning hair that has yellow tones before use to avoid undesired hues. Also available in our Classic High Voltage Cream Formula! WEAR IT LOUD!® * Style: Amplified Semi-Permanent Hair Dye * Color: Blue Steel  * Color Description -  Cool Blue Silver 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™.