Frankincense essential oil is extracted from the milky white sap found inside the tree bark of the Boswellia trees. Grown in African and Arabian tropical regions, frankincense is traditionally burned as incense and emits a woody, earthy, spicy aroma. The eoil is known for its comforting properties and is often used to overcome stress. This ingredient can also promote healthy cell regeneration and is useful for maintaining healthy skin. It can help treat dry patches, reverse signs of aging, and reduce the appearance of scars and stretch marks.