Kiehl's Eye Alert
An odorless, slightly bitter alkaloid, Caffeine has been shown to help reduce the appearance of puffiness when used in skincare products.
Cucumber Fruit Extract
Cucumber Fruit Extract has long been known for its beneficial uses to the skin. (Cleopatra used cucumber juice to maintain her skin.) It is known to cool and refresh the skin, and has been shown to be moisture-binding, moisture-regulating and softening properties. It is used as a treatment for oily skin and for tired and stressed skin, and as skin refresher in sun preparations.