GUILT-FREE GLAMOUR!®Mermaid is a cool ocean-blue neon hair dye with slightly green undertones. Details: Style: Classic Semi-Permanent Hair Dye Color: Mermaid Color Description - Cool Neon Ocean Teal 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 Tested on celebrities, not animals™.