Zelens' Hyaluron Intense Hydro-Plumping Serum is a lightweight face serum enriched with a powerful blend of hyaluronic acid (HA) in three different molecular weights, formulated to deliver hydration and lock in moisture for skin that appears supple, smooth and visibly plump. Combining the power of three different molecular weights of pure HA, this serum will penetrate your skin with essential hydration, while locking in moisture to fill in fine lines and wrinkles. This potent blend is then reinforced with a bioflavonoid, which inhibits hyaluronidase ' the enzyme responsible for HA deprivation in the skin. Finished with a dose of succinic acid to support skin cell renewal, you'll uncover a complexion that's deeply hydrated and naturally youthful.