NOW Foods Frankincense Oil Blend Boswellia Cateri 100 % Natural contains the essential oil Frankincense. Prediluted in a natural base of Grape Seed Oil. Grape Seed Oil is used because it is a light natural oil with no noticeable odor that can be used on all skin types. Frankincense is an ancient fragrance that has been used for thousands of years especially during the holidays with a mild camphor and citrus aroma. Frankincense was one of the gifts given to the baby Jesus from the three Magi. People often wonder why this is so after all isn t it just a nicely scented tree.