Oud: Everything You Need to Know About the Most Expensive Ingredient in Perfumery

Oud is the material that divides enthusiasts the most: we either love it or find it overwhelming. It is also the one about which the most inaccuracies circulate—starting with the first of all, that it is a wood.

This dossier covers the whole question: what oud really is, why it costs what it does, what synthesis changes, how to recognize origins, and how to choose a first bottle. Each article can be read on its own; together, they form a whole.

Oud in one minute

Oud is not a wood: it is a resin. Certain trees in Southeast Asia, from the Aquilaria and Gyrinops genera, produce it to defend themselves when a wound in their trunk becomes infected, most often by fungi carried by insects. The resin hardens in place, saturates the wood around the wound, and turns it black. It is this wood—and only this wood—that is called agarwood, agarwood, or oud.

When healthy, these same trees produce a pale, light, and perfectly odorless wood. All the value of oud therefore lies in an accident.

Why prices vary so much

Three facts explain most of it. First, rarity: the reference report written for CITES estimates that less than 10% of wild trees contain agarwood. Next, invisibility: a resinous tree and a healthy tree look alike, so one has to cut it open to find out. Finally, time: in nature, the formation of the resin takes twenty-five to thirty years.

No supply chain can operate at this pace, hence plantations and induced inoculation—the tree is deliberately wounded and microorganisms are introduced to trigger the reaction. A study published in 2017 on Aquilaria malaccensis, conducted in Assam, managed to induce the formation of the marker compound in three months. Inoculated plantation wood does not have the qualities of thirty-year-old wild wood, but it is the only way that does not deplete the resource.

In terms of figures, the same report cites superior qualities reaching $100,000 per kilo, and agarwood oil around $40,500 per liter in 2021. These amounts concern the raw material, not the perfumes that contain it—but they explain the gap between a house that works with natural oud and a house that works with a reconstruction.

A material under international protection

Aquilaria malaccensis was listed in CITES Appendix II in 1995. In 2005, the listing was extended to all species of the Aquilaria and Gyrinops genera. The species is also classified as critically endangered on the IUCN Red List, 2018 assessment.

Appendix II is not a ban: it is a permit system. Trade remains legal and documented. It is also what makes the traceability of an oud as crucial as its scent.

There is no single oud scent

The tree species, the region, the age of the resin, the microorganism responsible for the infection, and the extraction method produce very different profiles. Depending on the origins and the dosage, an oud can be read as woody, leathery, smoky, sometimes distinctly animalic, and in some cases almost honeyed or balsamic.

Compositions intended for the European market almost always frame it: rose and saffron to soften it, vanilla or labdanum to round it out, citrus to open it up. This is what explains why the same word, on two bottles, sometimes covers two opposite experiences.

In this dossier

• What is oud? The most expensive wood in perfumery
• Why is oud so expensive?
• Natural oud or synthetic oud: what separates them
• How is oud extracted? From the tree to the bottle
• Oud from Cambodia, India, Laos: recognizing the origins
• The most beautiful oud perfumes in our catalog
• Which oud to choose when you are starting out?

In what forms do you encounter it

Oud reaches you in three forms. Burning chips, the oldest use: pieces of resinous wood placed on charcoal, alone or coated in perfumed oils—this is the principle of bakhoor. Pure oil, often called dehn al oud, obtained by distilling the wood after soaking, which is applied in very small quantities and without alcohol. And the note in an alcoholic perfume, the only form in which most European enthusiasts encounter the material.

Oud perfumes at Odorare

Our selection is gathered in the Oud Perfumes collection. Most of these creations are also found in the woody perfumes and the amber perfumes, and the burning chips in Bakhoor and Incense.

Frequently asked questions

Is oud of animal origin?

No. It is an entirely plant-based material: a resin produced by a tree. The confusion comes from its animal facets, which recall leather or fur without originating from them.

Oud, sandalwood, cedarwood: same family?

No. Sandalwood and cedar are naturally fragrant woods; oud is a resin formed in a wood that, without infection, has no scent.

Is oud suitable for someone who is starting out?

Yes, provided you start with a composition where it is framed rather than a pure oil. A floral or fruity oud is a better entry point than a raw oud.

Can you buy oud legally?

Yes. The listing in CITES Appendix II regulates trade through a permit system; it does not ban it.

Sources: CITES, A review of the agarwood-producing genera Aquilaria and Gyrinops, CoP19 Inf. 12 · Frontiers in Microbiology, 2017, Aquilaria malaccensis, Assam · IUCN Red List, 2018 assessment.