Treat and protect with Sally Hansen Double Duty Strengthening Base and Top Coat. This two-in-one product strengthens nail beds as it locks in nail polish colors with a high-gloss finish that keeps colors looking fresh and radiant. The special formulation eliminates the need for a separate base and top coat for beautiful results. Sally Hansen Double Duty top coat features panthenol-strengthening Pro-vitamin B5 to moisturize and hydrate nails. The protective coating smooths the nail surface and improves nail color adherence for longer-lasting chip-resistant results. Sally Hansen top coat is dermatologist-tested for safe use as well as tested in salons to ensure lasting effective results.