GNC WOMEN’S Hyaluronic Acid – Dietary Supplement contains HA (as sodium hyaluronate). This supplement helps in supporting skin hydration and repair, and also serves as a component of collagen. Hyaluronic Acid (HA) has become one of the most popular agents for skin nourishment, maintaining skin turgor and elasticity, which in turn helps in maintaining soft and glowing skin, thereby making an individual look younger.