A natural gum resin extracted from the Styrax tonkinensis tree, Benzoin Siam Resin has a sweet-spicy and balsamic odor, with a unique vanillin-like nuance. The resin is commonly used within perfumery as a soap fragrance, providing a rich sweetness that doubles as a fixative agent for other ingredients such as abietic alcohols, benzyl benzoate, and copaiba balsam. Its flavor is incredibly harsh and biting, typically only included in certain specialty alcohols.