Hyaluron Serum, a powerful active concentrate with triple-action hyaluronic acid and HY-3 peptides, helps to hydrate the skin intensively: HY-3 peptides help improve the skin's ability to store moisture; triple-strength hyaluronic acid and a special NMF Moisturizing Complex help to improve moisture levels in the skin; used daily in addition to a moisturizing cream, it leaves skin looking thoroughly moisturized.