Formaldehyde And Latex Free, Water And Sweat Proof, Dries Out Clear, Hypoallergenic, Brush-On i-ENVY Super Strong Hold adhesives make the lashes last as long as you do. Ingredients are ophthalmologist tested and non-hypoallergenic meaning they’re kind to your skin. Strong hold for 48 hours, Waterproof & Sweat proof For best results, use with i-ENVY Eyelashes. Formaldehyde FREE, Latex FREE