OPI Classic Lacquer Nail Base Coat Natural is designed to protect nails and enhance the longevity of nail color. Ideal for natural nails, it provides a smooth base for application. Key Features Protects the nail Prevents nail color from chipping Key Ingredients: Butyl Acetate, Ethyl Acetate, Nitrocellulose, Acetyl Tributyl Citrate, Isopropyl Alcohol, Polymer Resins, Camphor, UV Absorber, Colorants (Trace amounts).OPI (Odyssey Nail Products Inc.) is a global professional nail care brand (owned by Coty). This product acts as a protective base layer for nail lacquer.Apply one coat to clean, dry nails before applying nail lacquer.FLAMMABLE. Keep away from heat and open flame. For external use only.