New size, twice as much! The Moisture Enrich fights dryness and wrinkles with just a couple of drops. A plant ester and essential oil blend, the Serum is especially suitable for cold, dry and severe conditions, such as air travel and dry climates. Used in conjunction with the OxyToner Skin Prep or Oxygen Replenish, the formula is water soluble and adds richness to skin without obstructing pores. Add a few drops to the Winter Moisturizer to combine the soothing qualities of the Moisture Enrich with the functionality of a spray.