OPI To use Opi Nail Lacquer Nail Polish , start by cleaning and drying your nails. Apply a base coat, shake the bottle of Opi Nail Lacquer Nail Polish , and apply a thin and even coat of the polish to your nails. Wait for the first coat to dry completely before applying a second coat. Finish with a topcoat to add shine and seal in the color. Let the polish dry completely before doing any activities that might damage your nails or the polish. Shower Gels