Uriage Eau Thermale Hydration Booster Serum delivers intense moisture with 1.5% pure hyaluronic acid, a powerhouse ingredient that penetrates deep into the skin to lock in hydration. This lightweight serum plumps fine lines, restores elasticity, and leaves your complexion visibly softer and more radiant. Formulated with Uriage's signature thermal water, this serum works to strengthen your skin barrier while providing long-lasting hydration. Perfect for all skin types, especially those seeking a dewy, supple finish. Apply to clean skin before your moisturizer for maximum benefits. 30ml of concentrated hydration that transforms dry, dull skin into a luminous, refreshed complexion.