It's a very thin polish, so I needed 3 coats for it to be mostly opaque. I think I would've been perfect after 4 coats but who has that much patience? I'm really sad I have to say I hate the formula. Luckily, the colour totally makes up for it. Look at that gorrrgeous blue shade! And it holds just enough sparkle for it to show in daylight. Yup, I think I'll be wearing this one a lot this winter. If I have the time and patience to put on 4 coats. Grr.