Oudh Cambodi Attar is a type of perfume oil made from the distilled essence of the Cambodian Agarwood tree (Aquilaria crassna), also known as the Oudh tree. This attar is highly valued in the perfume industry for its strong, woody, and musky scent. To make Oudh Cambodi Attar, the wood of the Oudh tree is distilled in water to extract its aromatic compounds. The resulting liquid is then blended with a carrier oil, such as sandalwood oil or jojoba oil, to create the attar.