Hyaluronic acid is a natural biocomposite material, which is found mainly in the educts of the cartilage, joints and skin, where the lubrication of the joints, the defense from germs and toxins and skin hydration roles are carried out. Hyaluronic acid in its natural state remains in the human body for one or two days and is then metabolized, but it can also be chemically changed and stabilized into a gel in a process called ‘cross-linking.’