Green, Balsamic, with Lemon-wood. Frankincense Carterii essential oil is hydro-distilled from a Middle Eastern or African tree’s gum resin. It has been used for thousands of years as a spiritual incense, folk medicine, and in cosmetics. Frankincense Carterii has the ability to rejuvenate the look of mature skin and can be used in serums or creams for the face. It is also used as an immune system support.