Infinite Shine & Long-Lasting! OPI Infinite Shine Primer base coat nail polish is the first step to achieving long-lasting nails. The OPI Infinite Shine Primer is a base coat nail polish that provides optimum sticking power. Benefits include less chipping, 60% higher gloss retention, and 25% higher shine when used as part of the OPI Infinite Shine system for up to 11 days of wear and shine. How to use: After manicuring the nails, wipe to remove any excess oils or residue. Shake to thoroughly mix the primer. Apply one coat to each nail. Shake to mix the Infinite Shade of your choice, and apply two thin coats on each nail. Shake to thoroughly mix Infinite Shine Gloss and apply one coat to each nail. Hot Tip: Work on both hands at the same time to ensure proper drying!