COSRX Triple Hyaluronic Moisture Ampoule is an intensive hydrating serum that combines three types of hyaluronic acid to deliver deep moisture to the skin. This lightweight formula helps plump, hydrate and soften dry, dehydrated skin while creating a protective moisture barrier. Key features: • Contains three forms of hyaluronic acid • Creates protective moisture barrier • Non-greasy, lightweight texture • Provides instant and long-lasting hydration • Suitable for dry and dehydrated skin • Contains Pro-Vitamin B5 (Panthenol) The ampoule uses high molecular weight hyaluronic acid to form a protective barrier on the skin's surface, while low molecular weight hyaluronic acid penetrates deeper layers for internal hydration. The viscous serum texture absorbs quickly without feeling sticky or heavy. For best results, apply 2-3 drops to clean face and gently massage until fully absorbed, avoiding eye and mouth areas.