Nail care that pulls a double shift! get a mani that just won't quit with sally hansen double duty base & top coat. As a base coat, our Panthenol formula smoothes nails' surface and helps hold on to color. As a top coat, Nylon and Pro-Vitamin B5 shields nails with a hard, chip-resistant finish. This 2-in-1 base and top coat protects and strengthens nails for stronger, flawless manicures that last.