Oud is also called Agarwood. It comes from the wood of the tropical Agar (Aquilaria) tree, believed to have originated in the Assam region of India, and spread from there throughout Southeast Asia. When the wood of this tree gets infected with a certain mold variety (Phialophora parasitica), it reacts by producing a precious, dark and fragrant resin from which is where the perfume ingredient is derived. Oud is highly valued by perfumers for its sweet, woody, aromatic and complex scent.
