New Never used A hydrating Serum by Kiehl's that plumps skin to improve elasticity and the appearance of dehydrated skin. Details Benefits Helps visibly plump skin to smooth the appearance of fine lines and uneven skin texture Formulated with Epidermal Hydration filler to encourage skin's natural production of Hyaluronic Acid and improve the appearance of dull skin This hydrating serum visibly improves the appearance of dehydrated skin brought on by a decline in skin's natural Hyaluronic Acid levels while helping improve skin elasticity Ophthalmologist-and-dermatologist-tested For all skin types