COSRX - Triple Hyaluronic Moisture AmpouleDeep & long lasting hydration! A viscous moisturizing serum that leaves skin supple and moisturized to provide deep hydration for dry, dehydrated skin types. Charge moisture deep into the skin with three types of Hyaluronic Acid High molecular Hyaluronic Acid creates an invisible protective barrier on the skin and keeps your skin moisturized. Low molecular Hyaluronic Acid soaks into the skin and increases the skin elasticity and makes you feel plump