Benzoin (Siam) vs Black Copal Resinoid
Benzoin (Siam) and Black Copal Resinoid are both resinous essential oils. Benzoin (Siam) carries a base note (sweet, warm), while Black Copal Resinoid sits as a base note (resinous, sweet). For topical use, keep Benzoin (Siam) at or below 2% and Black Copal Resinoid at 1%.
| Attribute | Benzoin (Siam) | Black Copal Resinoid |
|---|---|---|
| Latin name | Styrax tonkinensis | Protium spp. |
| Aroma family | Resinous | Resinous |
| Perfumery note | Base | Base |
| Aroma | sweet, warm, vanilla-like, balsamic, fresh | resinous, sweet, smoky |
| Chemical family | Ester | Sesquiterpene |
| Max topical dilution | 2% | 1% |
| Max facial dilution | 1% | 0.5% |
| Pregnancy | Generally suitable (well diluted) | Not recommended |
| Children | Generally suitable (well diluted) | Not recommended |
| Pets | Generally suitable (well diluted) | Not recommended |
| Extraction | Solvent extraction | Solvent extraction |
Scale amounts to any container with the dilution calculator.
Frequently asked questions
What's the difference between Benzoin (Siam) and Black Copal Resinoid?
Benzoin (Siam) and Black Copal Resinoid are both resinous essential oils. Benzoin (Siam) carries a base note (sweet, warm), while Black Copal Resinoid sits as a base note (resinous, sweet). For topical use, keep Benzoin (Siam) at or below 2% and Black Copal Resinoid at 1%.
Can you blend Benzoin (Siam) and Black Copal Resinoid together?
They can be combined, but Benzoin (Siam) and Black Copal Resinoid aren't a classic pairing — start with small amounts and adjust to taste.
Which is better during pregnancy, Benzoin (Siam) or Black Copal Resinoid?
Benzoin (Siam) is generally considered more suitable during pregnancy when properly diluted, whereas Black Copal Resinoid is not recommended. Always consult a qualified healthcare provider.
For education only — not medical or veterinary advice. Always patch-test and consult a qualified professional before use during pregnancy, on children, with pets, or with a health condition.