After spending more than 100 hours researching eyeliners; considering more than 100 gels, pencils, and liquids; and testing more than 50, we’ve found the three best eyeliners in pencil, liquid, and gel form. Whether you need a gel liner to last all day or you’re just looking for a pencil liner to throw on while you’re in a cab, we’ve found the easiest eyeliners to apply and remove, with the longest staying power.
Source: https://www.nytimes.com/wirecutter/guides/how-to-clean-makeup-brushes/