The Cosrx Full Fit Propolis Lip Sleeping Mask is a nourishing overnight lip treatment that helps to hydrate, repair, and soothe dry, chapped lips. Infused with 18% propolis extract, this mask provides intense moisture and revitalizes lips while you sleep. The rich, emollient formula forms a protective barrier that locks in moisture, leaving lips soft, smooth, and plump by morning. Ideal for dry or cracked lips, this mask is perfect for use at night but can also be applied throughout the day for extra hydration.