Hyaluronic Acid

Also known as hyaluronan, is a clear, gooey substance that is naturally produced by your body. The largest amounts of it are found in your skin, connective tissue and eyes. Its main function is to retain water to keep your tissues well lubricated and moist. When applied to the surface of the skin, hyaluronic acid serums can help to reduce wrinkles, redness and dermatitis.