Most people who look up oud vs agarwood want to know if they got sold the same thing twice. A lot of pages use the words like twins. You'll also see it spelled oudh or aoud. That is the same hunt.
They are not twins. Agarwood is the wood. Oud is the resin that wood can hold. The trade mixed the words so thoroughly that you have to go back to the tree to pull them apart.
What Is Agarwood?
Agarwood is the wood of Aquilaria trees. That is the whole definition. Not a vibe. Not a nickname for oud. The wood. A fragrance note can come from wood or from a resin a tree gives up, like frankincense.
If you have never heard Aquilaria, it is a tropical tree. People have been cutting and burning and carving that wood for a long time. In perfume, agarwood is the dry, wood-and-ground job that comes from that timber.
What Is Oud in Perfume?
Oud is the aromatic resin found in agarwood. The tree does not start out full of it. Under the right conditions the wood makes a dark, fragrant resin, and that resin is the oud.
So when someone says a perfume has oud in it, what they are smelling for is that resin: dark, woody, a little animal. They are not smelling the blank board. They are smelling what the wood made.
Why Do People Use the Words as Twins?
Because the resin lives in the wood. If you steam the wood, burn chips, or talk about a perfume, it is easy to let one word do both jobs. A lot of pages did. Some say oud and agarwood are the same thing. Some say one is the wood and one is the oil and then use them like synonyms anyway.
I don't think that helps you. If the words were truly interchangeable, a house would only need one of them.
Why Do We Print Both?
We list both because they are not the same thing. Agarwood is the wood of the Aquilaria tree. Oud is the resin in that wood. If they were one material with two names, we'd print one name.
We print both because they do different work, and because the rest of the market already taught people they were twins. Leaving both on the table is how we keep the jobs honest.
How Do They Sit in Our Formulas?
Three formulas, and they only make sense if the two words are not the same job.
What Is Bold Fortune Perfume? puts oud in the heart, next to whiskey. Saffron and cardamom open it. Amber, moss, patchouli, and tobacco hold the floor. There is no agarwood on that table. Bold Fortune
Four Vices is the bottle that lists both. Oud and agarwood sit in the base with musk and patchouli. Green hashish opens it. Tobacco, coffee, hops, spice, and violet sit in the middle. Four Vices
Desert Road uses agarwood and no oud. Leather, baked earth, and vetiver sit with it in the base. Petrol, cactus blossoms, and galbanum open it. Desert shrubs and black pepper are the middle. Desert Road
If those two words did the same work, Desert Road would not make sense next to Bold Fortune.
What Do They Smell Like on Skin?
What does oud smell like? Depends which room you put it in, but you are always in resin territory: dark, woody, a little animal.
In Bold Fortune it's the warm, dangerous middle of that kitchen, whiskey in the same breath, tobacco and amber underneath. It's not a cigar and it's not a gun. It's the dark resin that makes the room feel occupied.
Agarwood on Desert Road smells like heat on dirt and leather. It's drier. It belongs on a highway, not in a parlor. That is the wood, not the resin.
Four Vices is the late night where you can smell both jobs at once. The wood and the resin are still holding the porch after the coffee and the hops and the tobacco have had their say. That's the point of listing both. You can wear the difference.
If you want how oil perfume is built, and why oil instead of alcohol, those are already live: What Is Oil-Based Perfume and Oil vs Alcohol in Colognes & Perfumes.
The three bottles are the argument. The rest of the line is here.
Defy Common Scents.