Defi nition: Ceylon cinnamon bark oil is obtained by steam distillation of the bark of the shoots of Cinnamomum zeylanicum Nees (Cinnamomum verum J.S. Presl.).
Defi nition: Cassia oil is obtained by steam distillation of the leaves and young branches of Cinnamomum cassia Blume (Cinnamomum aromaticum Nees).