What Is Oud? The Complete Guide to Oud in Perfumery

Oud is the most expensive raw material in perfumery. Here is why it costs more than gold — and the best fragrances that feature it.

The Origins of Oud

Oud (also called agarwood, aloeswood, or oudh) comes from the heartwood of Aquilaria trees. When these trees are infected by a specific mold (Phialophora parasitica), they produce a dark, fragrant resin as a defense mechanism. This infected wood is oud — and it can take decades to form. Only about 2% of wild Aquilaria trees naturally produce it, making genuine oud one of the rarest raw materials on Earth.

Why Oud Is So Expensive

High-quality oud oil can cost $5,000 to $50,000 per kilogram, sometimes exceeding the price of gold. The scarcity of naturally infected trees, the decades-long formation process, and the labor-intensive distillation all contribute to its extraordinary cost. This is why most modern perfumes use synthetic oud or sustainable plantation-grown alternatives.

Synthetic vs Natural Oud

Natural oud has a complex, animalic quality that shifts between sweet, woody, smoky, and barnyard-like. It is used primarily in traditional Middle Eastern perfumery and ultra-luxury niche houses.

Synthetic oud (molecules like Georgywood, Cashmeran, or iso e super blends) captures the woody, smoky essence of oud at a fraction of the cost. Most designer oud fragrances use synthetic alternatives, and many are excellent.

Best Oud Fragrances