Question: what is the difference between cassia and cinnamon essential oil?
Answer: cassia, and sometimes called Vietnamese Cassia, has even higher amounts of coumarin. ... In regards to essential oils it Cinnamon Cassia is often made from the leaf which is really mild. The Cinnamon Bark essential oil is: Cinnamomum Zeylanicum Also known as "True Cinnamon" it is way stronger and has a more robust smell.