Defi nition: Neroli oil is obtained by steam distillation of the fresh fl owers of Citrus aurantium L. subsp. aurantium L. (Citrus aurantium L. subsp. amara Engl.).
Defi nition: Cassia oil is obtained by steam distillation of the leaves and young branches of Cinnamomum cassia Blume (Cinnamomum aromaticum Nees).