COSRX Lip Sleep Ceramide Lip Butter is a 20g formula engineered to deliver intensive overnight lip care with ceramide-enriched nourishment. This expert-developed lip butter combines ceramides with hydrating and conditioning actives to provide deep moisture, repair, and protection while you sleep. The rich yet smooth texture applies easily, delivering comprehensive lip nourishment without heaviness or greasiness, making it ideal for overnight treatment and all lip types seeking intensive care. The ceramide lip sleep technology works synergistically to hydrate deeply, repair lip barrier, reduce dryness, enhance softness, and promote plump, healthy-looking lips with consistent use. The advanced formula is dermatologist-tested and clinically proven, ensuring safety and efficacy for delicate lip skin without harsh chemicals or unnecessary additives. The concentrated 20g size provides extended application across multiple overnight treatments. Ideal for those seeking professional-grade lip care with ceramide benefits and intensive overnight repair, this butter delivers visible results. Apply generously to clean lips before bedtime, allowing the formula to work overnight. Experience visibly softer, more hydrated, and fuller-appearing lips with enhanced moisture retention, improved texture, reduced dryness, and a smooth, revitalized appearance.