With age, skin's texture begins to look rough and radiance is lost. The causes are three-fold: skin's hydration levels and cell turnover rate decrease, and the integrity of the skin's layers is reduced. To reactivate these properties and impart essential nutrients, Kiehl's proudly introduces Iris Extract Activating Treatment Essence - a multi-action formula that optimizes penetration of subsequent skin treatments and instantly reveals radiant, smooth and younger looking skin.