What it is: A waterproof eyeliner developed with plastic surgeons that gives your eyes instant definition with a single stroke.What it does: Whether you want to create thin, thick or cat-eye strokes, this innovative liner pen makes it easier than ever. It's designed with the brand's unique Heavenly Skin brush hair tip, which does the work for you. Unlike felt-tip liners, the brush hair tip won't fray and it applies liner with effortless precision. Featuring proprietary Elastic Stretch No-Skip technology and a Triple Black Pigment complex, this eyeliner creates super saturated, super black and super flawless lines that don't budge or smudge. Its formula also contains lash-enhancing superpower ingredients including peptides, collagen, biotin, keratin and kaolin clay. How to use: Press lightly to create a thinner line, and add slightly more pressure to create a thicker line. 0.02 oz. Cruelty-free