Known as the “five thousand dollar per pound scent,” Oud or Oudh is by far one of the most expensive raw fragrance ingredients in the world.
Also known as agarwood, this essential oil is extracted from the fungus-infected resinous heartwood of the agar tree, which is primarily found in the dense forests of Southeast Asia, India and Bangladesh. It is either extracted by distillation from the wood or by melting the resin.
It is believed that for every ten trees in the wild, only one will have an infected heartwood. Expert perfumers seek out these older trees because of the superior richness of the resin’s aroma. Unfortunately, many of these older trees are now considered threatened species.