I have on three coats and a topcoat. The formula on I'm with the lifeguard was pretty good. Three coats evened it all out nicely. It dries with a bit of gloss but I think a topcoat adds a nicer gloss to it and shows off the shimmer. It dries fairly quick too so no waiting around. It was a bitch to clean up though. The shimmery particles stuck to my skin and it took ages to get it off with a cotton bud and some remover.
It looks lovely on the nail and it doesn't make your hands look sickly pale. It's beautiful and unique.