Hyaluronic Acid can hold 1,000 times its own weight in water, making it an excellent hydrator for all skin types. It increases the moisture content of the skin, soothes and shield it from moisture loss. to demonstrate it water-binding properties, in a solution of 2% hyaluronic acid and 98% water, the hyaluronic acid clings to the water so firmly that it tends to form a gel.

As hyaluronic acid is applied to the skin, it forms a viscoelastic film to retain water. This makes hyaluronic acid is an excellent moisturiser base, allowing other agents to be delivered to the skin. Furthermore, its ability to maintain water, smooths rough skin surfaces immediately and greatly enhances skin appearance.

See also:
Humectants