OPI Nail Envy Strengthener in Double Nude-y offers a nude, neutral finish while fortifying nails. Ideal for weak nails, it provides strength and protection with a subtle color. Key Features Nail strengthener Coloured nude finish Neutral tone Fortifies nails Key Ingredients: Ethyl Acetate, Butyl Acetate, Nitrocellulose, Hydrolyzed Wheat Protein, Calcium Pantothenate, Camphor, Formaldehyde, Colorants (Nude Pigments).OPI is a global professional nail care brand. Nail Envy is a popular nail strengthening formula with added color.Apply two coats to clean, dry nails on day one, and one coat daily thereafter. Remove with nail polish remover after seven days.FLAMMABLE. Keep away from heat and open flame. For external use only.