The Cosrx Hyaluronic Acid Hydra Power Essence is an essence with a high concentration of natural, hydrating Sodium Hyaluronate (Hyaluronic Acid) to soften and moisturise skin. It penetrates deep into the skin and reduces any bumps, texture and drynes cause by dehydration. This oil-free, gel-like essence is also fast-absorbing and leaves skin feeling silky smooth without any stickiness.