Find LAURA MERCIER Caviar Tightline Eyeliner on Editorialist. What It Is:A smooth, gel-like eyeliner pencil that glides on easily to perfectly line the tightline, lash line and waterline for waterproof and 16-hour crease-proof wear.What It Does:This creamy formula provides 16-hour pigmented, longwearing, waterproof wear that won't tug, smudge or transfer. Wrapped in hyaluronic acid, it applies smoothly, provides ideal playtime to smudge, shape or correct before it sets and is available in…