You have smelled benzoin far more often than you have read the word.
Benzoin is a balsamic resin, tapped from the bark of trees in the genus Styrax. Growers cut the trunk, the tree floods the wound with resin, and the hardened gum is collected by hand. It is not a bean, a bark or a wood, whatever the name suggests.
Two grades run the trade, and they are not interchangeable. Benzoin Siam comes from Styrax tonkinensis, grown across Laos, Vietnam, Thailand and Cambodia. Benzoin Sumatra comes from Styrax benzoin on the Indonesian islands. Siam is the sweeter, softer one. Sumatra carries cinnamic acid and reads smokier and more medicinal.
The composition explains why Siam is the one most fine fragrance uses. It runs at roughly 65 to 75% coniferyl benzoate, around 12% free benzoic acid, and about 1% vanillin. That last figure is small and it does a lot of work. It is the reason benzoin smells like warm vanilla ice cream without any vanilla being in the bottle.
Worth knowing before you buy on a note list. Benzoin is rarely the thing you notice, because its main job is fixative. It slows the evaporation of everything lighter sitting above it. When a sweet fragrance is still readable on your jumper the next morning, resin like this is usually the reason, not the vanilla it is propping up.
Louis Vuitton is unusually direct about it. Ombre Nomade lists three key notes, oud wood, benzoin balm and incense, and the house describes Jacques Cavallier Belletrud faceting the oud "with a hint of benzoin balm". Maison Francis Kurkdjian does the same thing in Oud Satin Mood, where benzoin sits in the base with oud and vanilla and rounds off the sharp edges of the wood.
Two of ours lean hard on that same resin. Nomade is our take on Ombre Nomade and Oud Mood is our take on Oud Satin Mood, both UK made at 35% concentration. See also the best Louis Vuitton dupes in the UK and the best oud fragrances in the UK.
