Our champion of strengthening. Our new strength boosting formula, infused with biotin, helps reinforce weak & brittle feeling nails. The result: A beautiful manicure due to stronger nails more resistant to peeling, chipping & breakage. Indication Stronger Nails How to use Apply one coat of essie strong start base coat to a clean nail and allow to dry. Follow with two coats of any essie polish, and finish with an essie top coat.