Frankincense, a popular essential oil, has been revered for millennia for religious, medicinal, and beautification purposes. A literal testament to its value comes from the Bible, where many know it as one of the three gifts the wise men brought to the birth of Jesus.
Frankincense comes from the Boswellia tree, which is native to Africa, much of the Middle East, parts of India, and Pakistan. An incision is made in the trunk of the Boswellia tree, which exudes a milky sap that hardens upon contact with the air, turning it into a resin. The resin also can be steam-distilled, producing a fragrant essential oil.