Little Tree Oud Wood Air Freshener, also known as Agarwood and Aloeswood, comes from the Aquilaria tree. It is extremely rare and is the world"s most precious wood. Oud, the popular Middle East fragrance, comes from a resin that is produced by Oud wood. A rich, deep, woodsy scent inspired by ancient rituals, yet for a modern lifestyle. Oud is said to calm nerves, expel negative energy and bring harmony to your home. The most potent aphrodisiac of all the essential oils, it is known to ward off evil as well as attract lovers.