Myvitamins Hyaluronic Acid Tablets are a pure source of a moisture-retaining molecule that is found in our skin.Hyaluronic acid occurs naturally in our connective tissues, like our joints, muscles, and skin, where it stores 1000x its own weight in water. Hyaluronic acid is most commonly found in our skin, with over 50% of our body’s production being stored in our skin cells.