Oudh, also known as Agarwood, is a fragrant dark wood that forms in the heart of the Aquilaria tree when it becomes infected with a specific type of mold. This process leads to the production of a resin that gives Oudh its distinctive aroma, making it highly valued in perfumery and traditional medicine. The scent of Oudh is rich and complex, often described as woody, sweet, and earthy. It is used in various cultural practices, including incense burning and aromatherapy, and is particularly popular in the Middle East and Asia, where it has been cherished for centuries.