What is the purest form of frankincense?

For years, frankincense oil, which originated in Africa, India, and the Middle East, has been important both socially and economically as an ingredient in incense and perfumes. Frankincense oil is made from aromatic hardened gum resins extracted from Boswellia trees. The aromatic characteristics of the oil are thought to induce sensations of relaxation, calm, and overall health. From research, It's also thought that frankincense can help support cellular function, so it's often used to soothe skin and reduce the appearance of blemishes. As for the best frankincense in the world, well, maybe you should check out frankincense serrata.