Hydro-Plumping Serum Concentrate - BenefitsHelps visibly plump skin to smooth the appearance of fine lines and uneven skin textureFormulated with Epidermal Hydration filler to encourage skin's natural production of Hyaluronic Acid and improve the appearance of dull skinThis hydrating serum visibly improves the appearance of dehydrated skin brought on by a decline in skin's naturalHyaluronic Acid levels while helping improve skin elasticityOphthalmologist-and-dermatologist-testedFor all skin typesKey IngredientsGLYCERIN: A well-known skincare ingredient, is highly compatible and naturally occurring within skin.Within Kiehl's formulas, GLYCERIN is a powerful humectant known to attract and lock in moisture to the upper surface layer of the skin to help maintain a "filling effect" and visibly smooth dry, fine lines. - Hydro-Plumping Serum Concentrate