This is a review for the clear "Puro clear" shade. I am not sure this is even a base coat, but it does the most amazing job both as a top and a base coat. It has a neat brush that is as wide as 2 regular nail polish brushes, so you can do your nail with one sweep... which results in no streaking (I also have colored versions of this polish, and the brush does the same amazing job in reducing streaking). This nail polish is great by itself AND makes other polishes last longer- I would definitely recommend anyone to try it.