This polish should definitely be used with a base coat. It's pigmented, but sheer at the same time because it isn't very thick. I used three coats, but if I would have used a base coat or a ridge filler I think two coats would due the color justice. This is a very pretty golden yellow with tiny little glass flecks to give it a simple shimmer. Sheer awesomeness too bad I just can’t pull off yellow with my skin tone. I always try though.