Agarwood
What is Oud?
Oud is not wood. Oud is what a tree produces when it is wounded — resin, stored for decades as a defence. This single fact explains the price, the rarity, and the scent.
~1%
of Aquilaria trees produce resin in the wild
20+
years until usable agarwood forms
CITES II
the genus is protected
From tree to bottle
Twenty years, then six months
Nothing in this sequence can be shortened. That is the entire cost of real oud.
01
The Tree
Aquilaria, Thailand. Twenty years and more before it is even considered.
02
The Wound
Only a wound and a fungus trigger resin formation. About one percent of trees do this in the wild.
03
The Wood
Resin-permeated heartwood. The darker the veins, the denser the resin.
04
Distillation
Steam extracts the resin from the wood. From kilograms of wood come millilitres of oil.
05
Maturation
Switzerland. Oud Amal rests six months before filtration and filling.
Oud refers to resinous agarwood, which primarily forms in trees of the genera Aquilaria and Gyrinops, as well as the fragrant oil extracted from it. Its character can be woody, balsamic, leathery, fruity, or animalic. The decisive factors are the raw material and its processing. A perfume with an Oud note can contain natural Oud oil, a recreated accord, or both.12
Anyone wanting to understand Oud should distinguish between three things: the tree, the fragrant material within the wood, and the finished composition on the skin. Between them lie biological processes, artisanal decisions, and the work of perfumery. That is exactly where the story of this special fragrance begins.
29 min read · 29 sources
What the word Oud means
The Arabic word ʿūd means wood or stick. In the world of fragrance, Oud usually refers to agarwood or its oil; Oudh is another spelling. The Arabic lute is also called Oud. The shared name obviously does not make the musical instrument a perfume raw material.
In trade, you encounter several terms. This overview helps to distinguish the product types:
| Term | Meaning | What cannot be derived from this |
|---|---|---|
| Agarwood | Wood enriched with fragrances and resin | That every piece has the same scent intensity |
| Oud oil or Dehn al Oud | A product offered as oud oil; in the precise sense, the extracted wood oil | That every commercial product is undiluted and unadulterated |
| Oud perfume | A finished fragrance composition with an oud theme | What proportion of natural oud oil is contained |
| Oud accord | A composition that creates the impression of oud | That it consists of a single molecule |
| Mukhallat | A fragrance blend | That it contains exclusively oud |
| Bakhoor | A term for incense, often a fragrant mixture | That it is pure agarwood |
| Attar or Ittar | A term for perfume or fragrance oil with regionally varying traditions | A uniform recipe or automatically one hundred percent natural substances |
Oil, incense wood, and blended perfume belong to the same fragrance culture but are different products. Trade reports document this variety, especially for the Gulf region.3
How Oud is formed in the tree
A healthy Aquilaria tree does not consist of precious, dark-colored aromatic wood throughout. The coveted resin enrichment occurs as a reaction to stress and injury. In doing so, the tree alters its metabolism. Injuries, microorganisms, and other stress stimuli can interact. The often-told story of a single fungus that transforms every Oud tree is too simplistic.1
Research into inoculation shows that various fungi can trigger such reactions. The tree is an active biochemical producer in this process. The organisms living in or introduced into the wood and the tree’s defense mechanisms influence one another. Not every treatment produces the same quantity or the same substance profile.4
The characteristic substance inventory of Agarwood includes Sesquiterpene and 2-(2-phenylethyl)chromones. However, the resinous wood and its distilled oil are not chemically identical: a distillation primarily transfers sufficiently volatile components. Anyone heating wood, analyzing an extract, or smelling an oil is looking at different facets of the same material.1
Where Oud comes from and where it is produced
Its botanical origin is in Southern and Southeastern Asia. Relevant regions of origin include Northeast India and Bangladesh, as well as mainland and island regions of Southeast Asia. China is also an important region for Agarwood. Aquilaria and Gyrinops comprise several species; "Oud" does not refer to a single, globally uniform tree species.10
For a specific product, at least three geographical indicators must be distinguished: Where did the tree grow? Where was the oil extracted? Where was the finished perfume composed and bottled? In addition, there are countries of trade and re-export. Therefore, a shipment from Dubai does not necessarily consist of wood grown there. Trade in the United Arab Emirates explicitly includes import, further processing, and re-export.3
This distinction also protects against an overly simplistic fragrance map. A country name can provide orientation. It is not sufficient as a prediction of the actual scent of a batch.
Oud from Trat in Thailand
Trat is located in eastern Thailand near Cambodia. In the Oud scene, the name stands for a region of origin and processing where cultivated material and artisanal distillation come together. A travel report from a commercial Oud dealer in 2023 describes visits to local producers and cultivated Crassna stands. It provides first-hand insights, but remains the account of a commercial market participant.11
What does Oud from Trat smell like? The better answer begins with a sample. Sweet, fruity, woody, leathery, or animalic impressions may suit the description of a specific oil. They are not a binding definition of the province. With Oud in particular, the name of the origin and the style of production are closely intertwined: someone who prepares or distills the same raw material differently can produce a different emphasis.
A manufacturer's report describes different distillations of Trat wood in Thailand, Assam, and Pakistan. This is a vivid indication of the importance of the process. Since several conditions changed simultaneously, the comparison does not prove what role water, climate, equipment, or working method played in each case.12
For an Oud from Trat, the following information is therefore valuable: the identity of the producer, the botanical species, the location of the tree stands, the form of cultivation, the harvest batch, and the location of the distillation. "Bought in Thailand" is a different statement than "obtained from trees in Trat." Anyone who distinguishes between these clearly tells a more interesting story of origin.
Whether a fragrance contains real agarwood or an accord reveals itself in hours three to six — not in the first ten minutes.
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