Hyaluronic acid (HA) is naturally occurring element found throughout the body, necessary for healthy joints and connective tissue. * It functions as a "space filler," providing moisture-filled cushioning between cells. Skin is made up of 70% water. HA has been shown to hold on to more water than any other molecule in the body, which is vital in the production and maintenance of collagen and cartilage. * HA is ideal for supporting the more aqueous parts of the body. * It does not remain in the joints for prolonged periods and therefore cannot exert long-lasting action. If you want to learn more about our products please feel free to contact me Best regards Ada