The COSRX Hyaluronic Acid Intensive Cream is a skincare product formulated with hyaluronic acid, a naturally occurring glycosaminoglycan known for its ability to retain moisture in the skin. Hyaluronic acid, or sodium hyaluronate, is a humectant that can hold up to 1000 times its weight in water, making it an effective hydrating agent in skincare products. In addition to hyaluronic acid, this cream contains other key ingredients such as shea butter, ceramides, and sodium hyaluronate. Shea butter is a rich source of fatty acids and antioxidants that help nourish and moisturize the skin. Ceramides are lipids that support the skin barrier function, helping to prevent moisture loss and maintain skin hydration. Sodium hyaluronate, a salt derivative of hyaluronic acid, has a smaller molecular size which can penetrate deeper into the skin, enhancing its hydrating effects. The formulation of this cream creates a barrier on the skin surface, reducing transepidermal water loss (TEWL) and improving skin hydration. The pH of the product is carefully balanced to ensure compatibility with the skin's natural pH level, minimizing the risk of irritation. Upon application, the cream forms a protective layer on the skin, locking in moisture and providing long-lasting hydration. The viscosity of the cream allows for easy application and absorption into the skin, leaving a non-greasy finish.