What you should know
Hyaluronic acid is a substance that helps your skin retain moisture, and while it is naturally present in your body, your hyaluronic acid levels slowly deplete over time as you age.
Topical creams, serums and moisturizers that contain hyaluronic acid are usually good for your skin as long as they do not contain alcohol, sulfates, phthalates or other ingredients that can damage or dry out your skin.
Hyaluronic acid molecules are usually too large to cross the skin layers. You will want to find a product that offers a variety of molecular sizes to get better benefits from topical application. Lower molecular weights allow for deeper penetration into the skin.
Since moisturizers sit on the surface of the skin, they can keep moisture on the surface of the skin. Adding a hyaluronic acid moisturizer to your existing skin care regimen will provide you with the best results from hyaluronic acid treatments.