Thailand oud is agarwood oil and wood from Thailand, obtained mainly from the resin-laden heartwood of Aquilaria crassna. It is a woody note usually placed on the sweet side of the oud spectrum, with a warm, honeyed, softly fruity woodiness and far less of the barnyard character associated with Indian oils.

What does Thailand Oud smell like?

Thai oils tend to be described as sweet and approachable: a syrupy, slightly fruity opening, a resinous heart with hints of incense and tobacco leaf, and a clean, rounded wood in the drydown. The medicinal sharpness found in some Indochinese ouds is often milder, and many Thai oils feel smoother and lighter-bodied than Cambodian distillations of similar age. Quality varies widely, though. Oils from old, heavily resinated wood are dense and complex, while oils from young inoculated trees can smell greener and more straightforward.

Where Thailand Oud comes from

Several agarwood-producing species grow in Thailand, including Aquilaria crassna, A. baillonii and A. hirta, with A. crassna the most important for oil. As across the region, wild trees have been heavily depleted, and cultivated trees that are deliberately wounded or inoculated to trigger resin formation now supply much of the modern trade.

• Also known as: Thai oud, Thai agarwood
• Fragrance family: Woody
• Type: Natural (often represented by accords)
• Main origins: Thailand
• How it's obtained: Hydrodistillation of soaked, resin-rich heartwood; wood chips are also sold for burning
• Key aroma molecules: Sesquiterpenes and chromones typical of agarwood

Thailand Oud in perfume history

Thailand appears in one of the oldest systems for grading agarwood. In Japan's kōdō, the refined art of appreciating incense, wood known as rakoku was linked with Thailand and classed as "sweet", a description that still fits the reputation of Thai oils today. Beyond that, there is little documented history of Thai oud as a named perfume note before specialist distillers began labelling oils by country during the oud boom of the 2000s.

Thailand Oud in modern perfumery

Thai oud is found mostly in single-origin oils and attars and in niche perfumes that name the origin to promise a gentler oud. In mainstream fragrance the note usually refers to a sweet oud accord rather than a meaningful dose of natural Thai oil.

How Thailand Oud wears and what it pairs with

Like all ouds it behaves as a long-lasting base note, but its softness lets it blend rather than dominate. It works well with rose, jasmine, saffron, sandalwood, vanilla, amber and tobacco.

Safety and regulation

Aquilaria crassna is rated Critically Endangered by the IUCN, and all Aquilaria species are listed in CITES Appendix II, so export requires permits.