Sodium Hyaluronate Crosspolymer Best Humectant Hydration Anti-Ageing Soothing Sodium Hyaluronate Crosspolymer description A modified form of skin-replenishing hyaluronic acid attached to a polymer structure that keeps it within skin's uppermost layers longer, allowing for enhanced hydration. Sodium hyaluronate crosspolymer is not animal-derived. Related ingredients: Sodium Hyaluronate Hyaluronic Acid