Oud or Agarwood is one of the most expensive and luxurious natural substances, also known as “liquid gold”. Oud fragrance oil is extracted from the world’s most expensive wood of Agarwood trees. Agarwood is a species of tree only grow in parts of South East Asia, primarily found in Bangladesh and India. For thousands of years, it has been used in the Middle East and Asia in the form of incense, body oils and fragrance. It is said to be the most expensive fragrance due to its rarity, only 2% of wild agarwood trees produce oud fragrance.