This lightweight serum has a gel-like texture and contains 1% Hyaluronic acid (HA) to maintain moisture and keep skin plump and hydrated. HA is a nice big sugar molecule from repeated subunits (polymer) that can be found naturally in our body. It’s the most dominant, and most important molecule in the extracellular matrix. HA has many important biological functions. Apart from hydration, the skin-related functions include maintaining the skin's elasticity, reducing the skin's inflammatory response, regenerating the damaged skin barrier and plumping up water-loss related wrinkles. Essentially, helping the skin to look and feel healthy and young.