Laneige Lip Sleeping Mask EX is a cosmetic product that is intended to deliver deep moisturization and nutrition to the user's lips as they sleep. This product employs Laneige's exclusive Moisture Wrap technology, which includes Hyaluronic Acid, minerals, and Lipidure, to seal in moisture and protect against dryness and environmental causes. The recipe contains Vitamin C and antioxidants to protect the lips from free radical damage, resulting in soft, smooth, and moisturized lips. The product is intended for dry and harsh lips and is used as a lip mask at night.