Oud scent: why it's the note everyone is searching for

Oud is a resin. It forms inside the wood of the Aquilaria tree — a genus native to Southeast Asia — when the tree becomes infected by a particular type of mould. The tree responds to the infection by producing a dark, dense, aromatic substance that saturates the heartwood. That substance is oud.

The wood itself is sometimes called agarwood, aloeswood, or eaglewood, depending on where you are in the world. The oil distilled from it — oud oil — is one of the most expensive raw materials in perfumery. It has been used in incense, medicine, and fragrance across the Middle East, South Asia, and East Asia for thousands of years. In Western perfumery, it arrived much later.

Where oud comes from

The Aquilaria tree grows across a belt stretching from northeast India through Myanmar, Laos, Cambodia, Vietnam, Thailand, Malaysia, and Indonesia. There are roughly twenty species in the genus, but only a handful produce oud of commercial value.

Here's the catch: not every Aquilaria tree produces oud. The resin only forms in response to infection — and in the wild, estimates suggest that fewer than two percent of trees are naturally infected. That scarcity is the reason oud has always been expensive and the reason plantation-grown agarwood, where trees are deliberately inoculated, has become an industry of its own.

The quality and character of oud varies enormously by region. Cambodian and Laotian oud tends to be sweeter, fruitier, with a tropical quality. Indian oud — sometimes called Hindi oud — is earthier, more animalic, with a barnyard edge that some people love and others find confronting. Indonesian oud often sits somewhere between the two. Middle Eastern oud, often processed differently (cooked or aged), can be smokier and drier.

What does oud smell like?

This is the hard part. Oud doesn't smell like one thing.

At its most basic, oud is woody. But that barely scratches the surface. Depending on the origin, the grade, and how it's been processed, oud can smell sweet, medicinal, smoky, leathery, honeyed, sharp, animalic, fruity, or some combination of all of these at once. It shifts on skin over the course of hours. The opening is often the most challenging part — sharp, sometimes almost antiseptic — before it settles into something warmer and more complex.

People who smell oud for the first time often have one of two reactions: either they're immediately fascinated, or they recoil. There isn't much middle ground. But the people who are fascinated tend to stay fascinated for a long time.

Why oud is so expensive

Natural oud oil currently trades at somewhere between $5,000 and $80,000 per kilogram, depending on the grade and origin. The highest grades — old-growth wild agarwood from regions where the trees are now critically endangered — can go higher than that.

The price reflects three things: rarity (wild infected trees are scarce), time (the resin takes years to develop), and demand (the Middle Eastern and East Asian markets have consumed oud for centuries and show no sign of slowing down). Plantation oud has brought the entry price down somewhat, but even farmed agarwood takes several years from inoculation to harvest.

Oud in perfumery

Oud has been a cornerstone of Middle Eastern and South Asian perfumery for as long as either tradition has existed. In the Gulf states, pure oud oil is worn directly on skin — a drop on the wrists, behind the ears. It's also burned as incense (bakhoor) in homes and at gatherings.

In Western perfumery, oud was virtually unknown until the mid-2000s. A handful of niche houses — Montale, By Kilian, and later Tom Ford with Oud Wood in 2007 — brought the ingredient to a Western audience and triggered what the industry now calls the "oud boom." Within a few years, almost every major fragrance house had an oud in their lineup.

Most Western oud perfumes don't use pure natural oud oil. The cost would make them prohibitively expensive, and the smell of raw oud oil can be too intense for noses not accustomed to it. Instead, perfumers use synthetic oud molecules — compounds like Javanol, Georgywood, or various proprietary accords — that capture aspects of the oud scent in a more controlled, wearable way. Some houses use a blend of natural and synthetic. A few use only natural.

Our Black Oud uses oud from Laos and Cambodia — two origins that conspire to create a tropical, slightly animalic effect — paired with clove and Indonesian patchouli. White Oud takes a different approach: smoked wood, cumin, coriander, and oud from Laos, built more like a fine Bordeaux than a blast of resin. And Rose Oud follows the oldest oud tradition of all — rose and oud together, the combination that has anchored Middle Eastern perfumery for centuries.

Synthetic oud vs natural oud

This is a debate that gets people worked up, but the truth is simpler than either side admits. Natural oud oil is extraordinary — complex, shifting, alive on skin in a way that synthetics struggle to replicate. But it's also wildly inconsistent batch to batch, extremely expensive, and environmentally problematic given the pressure on wild Aquilaria populations.

Synthetic oud molecules are more consistent, more affordable, and have allowed millions of people who would never encounter natural oud to experience something in the same territory. The best synthetic ouds are genuinely good. They're not the same as natural oud, but they don't need to be.

Most well-made oud perfumes use some combination of both — natural oud for depth and complexity, synthetic molecules for structure and consistency. The argument over which is "better" misses the point. They do different things.

Types of oud by region

Cambodian oud — Sweet, fruity, sometimes almost jammy. Often considered the most approachable for Western noses. High-grade Cambodian oud has a distinctive honeyed quality.

Laotian oud — Close to Cambodian in character but often with more green, herbal facets. Tends to be slightly drier.

Indian oud (Hindi oud) — The most polarising. Earthy, animalic, barnyard, leathery. This is the oud that makes people either obsessed or horrified. Historically the most prized in the Middle East.

Indonesian oud — Varies widely by island and species. Can be grassy, herbal, or resinous. Generally more affordable than Cambodian or Indian.

Vietnamese oud — Often has a distinctive spicy, slightly medicinal edge. Some of the rarest and most expensive agarwood in the world comes from Vietnam's old-growth forests, most of which are now depleted.

Oud is not one smell. It's a family — and once you start paying attention to the differences between origins, it's hard to stop.