The scent of Frankincense can be described as warm, sweet and rich.  It is sourced from the Boswellia tree native to mountainous regions of the Middle East and India.  It has been used throughout recorded history as an incense and for medicinal purposes.  Its primary chemical constituents include α-phellandrenes, α-pinene, β-pinene, α-thujene, l-limonene and β-elemene.