What it Does The nail polish that started it all–our award winning, vibrant formula that nails the salon look. How to Use Nail polish application typically involves 1 coat of base coat, 2 coats of color application to ensure full coverage, and 1 coat of top coat for long-lasting wear and shine. OPI Nail Lacquer is the ultimate DIY nail polish system that allows the expression of color with trendy and iconic shades. Ingredients: Butyl Acetate, Ethyl Acetate, Nitrocellulose, Tosylamide/Epoxy Resin, Acetyl Tributyl Citrate, Isopropyl Alcohol, Stearalkonium Bentonite, Benzophenone-1, Silica, Trimethylpentanediyl Dibenzoate Please be aware ingredients are subject to change periodically. It is recommended you check the product packaging prior to use for a complete ingredient list.