Lip liner is the one product when applied incorrectly makes it obvious that you are wearing makeup. Overdrawn liner looks cheap and harsh; subtle liner plays up your pout in assorted, gorgeous ways where lips appear fuller, younger, and more defined. Most importantly, lip liner gives lip gloss and lipstick something to adhere to, therefore increasing staying power and preventing color from bleeding into fine lines. Lips are meant to be soft and kissable, so there’s no excuse for rigid lip lines.