Not all Hyaluronic Acid serums are created equal. êtrelume® 2.1% Pure HA++ goes deeper than the surface with 8 different molecular weights of Hyaluronic Acid, each penetrating a different layer of the skin for truly comprehensive hydration. Boosted with Aquaxyl and Pentavitin to lock in moisture for up to 72 hours, Niacinamide 2% to brighten and even skin tone, and D-Panthenol to soothe and strengthen the skin barrier. The result? Visibly reduced fine lines, restored elasticity, and skin that stays hydrated all day — without feeling heavy or greasy. Dermatologist-tested, paraben-free, and suitable for all skin types including sensitive skin. Your daily hydration ritual, elevated.