Nail lacquer is generally more durable than traditional nail polish formulas and is usually slightly thicker in comparison, allowing it to be more resistant to peeling. In general, nail polishes are solvent-based coatings that contain pigments and are applied to the nails using a brush. Nail polishes do not require curing in a lamp to dry. OPI Nail Lacquer is a quick-drying formula that provides up to 7 days of wear and is available in over 200 unique shades.