Hyaluronic Acid, also known as hyaluronan, is a clear, gooey substance that is naturally produced by the body. It is primarily found in the skin, connective tissues, and eyes. Hyaluronic Acid is often used in skincare products for its ability to retain moisture, keeping the skin hydrated and plump. It is also used in joint health supplements for its lubricating properties, helping to cushion and lubricate the joints.