I purchased this in July and have kept it stored without using it. Erzetin is developed and sold by specialists from the major Korean aesthetic dermatology clinic, Abijou Clinic, and is also used in aesthetic treatments. 1. Provides rich moisturizing care for skin that is always hydrated and radiant. Experience newly hydrated and glowing skin every morning. 2. Contains probiotics to moisturize the skin, balance oil and water levels, and protect the skin from external irritants, helping to create resilient skin. 3. Five different sizes of hyaluronic acid provide moisture to the stratum corneum of the skin, enhancing hydration. 4. Despite the gel-like, plump cream texture, it is not heavy, and you can feel a refreshing sensation as if water droplets burst upon application.