The Essential Serum is a potent blend of 15 plant and essential oils known for their nourishing properties, plus a boost of natural Vitamin E, providing customizable levels of moisture to the skin. The Essential Serum is the quintessential multi-tasker; it can be used in the morning and evening. For your evening treatment, double the amount you use during the day. It can also be used on the neck, décolleté and eye areas. In addition, for those who use mineral powder foundation, the Essential Serum can be mixed in the hand with the powder to create a tinted moisturizer.