Hyaluronic acid helps to soften fine lines, making the skin firmer and smoother. It also helps to eliminate any dry areas on the skin. The moisture carried by HA helps to volumize the skin cells, giving them a "juicy", youthful appearance. Unfortunately, our body's ability to produce hyaluronic acid decreases with age. The process begins at the age of 26 and gradually decreases, most noticeably during and after the menopause