I have always been a fan of Pixi products and I can see why this eyeliner is a cult favorite. The formula goes on creamy and stay put. The highly pigmented teal pencil is waterproof and smudge proof. Like all the other Pixi products, it doesn't contain any parabens or mineral oils and it's not tested on animals. There are 10 colors in the line and I can't wait to try the rest.