The LANEIGE Bouncy & Firm Face Sleeping Mask 60ml is an overnight mask designed to plump and firm skin while you sleep. Its formula, enriched with Peony-Collagen Complex (7.25%) and Probiotic Lysate, aims to hydrate, revitalize, and improve skin elasticity, while strengthening its protective barrier. Upon waking, skin appears firmer, plumper, and more radiant.