Our champion of multi-use. Our versatile multi-use formulation, infused with argan oil, helps strengthen the nail when applied as a base coat while providing your colour with a high gloss shield. The result: Strength & shine from top to bottom. Indication Shiny Nails Strong Nails How to use Apply one coat of essie all-in-one base & top coat as a base, let dry. Follow with 2 coats of essie polish. Then, apply one coat of essie all-in-one top & base coat as a finishing step.