Orthica Hyaluronic Acid 120 Hyaluronic acid hydrates the skin through its unique water-binding capacity To support your skin, you can supplement a healthy diet with supplements that help keep your skin beautiful from within, for example hydration. Hyaluronic acid has the unique property of binding more than 1000 times its own weight in water. It helps hydrate dry skin, maintain skin firmness and reduces visible fine lines. Biotin (vitamin B8) helps care for the skin from within.