Urban Decay Perversion Ink for Eyes ($20.00 for 0.02 fl. oz.) is a deep, dark, neutral black with a satiny finish. See comparison swatches / view dupes. It’s easy to maneuver, and you can easily create thin to medium lines depending on whether you use the very tip of the pen or hold it more horizontally for a wider line. The liquid flowed evenly out of the pen, and it never seemed to dry up or require shaking to restart the flow of the eyeliner–and the lines it left were richly pigmented and fully opaque. It dried down fairly quickly, set and stayed in place on me for ten hours. It also removed easily with cleansing oil (I used shu’s).