WHO IT IS FOR: A wide range of colors perfect for any occasion - you'll want to buy more than one! This is a professional quality nail polish and is very strong and durable. OPI Nail Polish works wonders on either natural fingernails or acrylic nails. HOW TO USE: Shake bottle vigorously before use. Smooth the surface of the nail with a final stroke of the brush. Then, apply a second coat of nail lacquer, pulling color over the tips of the nails. Made in the USA. Please view the above Ingredients tab for ingredient information.