GUILT-FREE GLAMOUR!®Electric Banana is a bright, neon yellow hair dye that reflects slightly green in sunlight and glows under blacklight! For the most vibrant results, we recommend lightening your hair to the lightest level 10 blonde before use. WEAR IT LOUD® Details: Style: Amplified Semi-Permanent Hair Dye Color: Electric Banana Color Description -  Bright Neon Yellow 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: up to 4 - 6 weeks with proper hair care For Best Results: See Instructions Tab  Tested on celebrities, not animals™.