Obtain una A perfect manicure is easier than it seems. Multifunctional nail polish Essie All-in-One contains everything you need in a single bottle. It works as both a base and a top coat, making it perfect for any cosmetic bag. The nail polish Essie All-in-One is also enriched with argan oil, so it acts as a base coat to strengthen nails and as a top coat to add shine and protection.