Oud possesses a great cultural significance because of its use in traditional incense and perfumes, and it is also mentioned in one of the world's oldest written texts - the Sanskrit Vedas from India. When the once light Aquilaria tree heartwood becomes infected with a specific type of mold, it defends itself with a dark and fragrant protective resin. This now dark wood, oud or agarwood, holds a complex fragrance, resembling few or no other natural ingredients. Accord Oud composition blends agar with fresh leather accord, blonde woods, spices (saffron, cinnamon) and black plum. It is composed of blackberries, saffron and rum top notes, with the heart of leather and clary sage and the base of patchouli and powdery musk.