A close relation to Cinnamon, Cassia has a strong, spicy aroma that can be used in small quantities to transform any essential oil blend. Made in China. O-C061-E Warning: Essential oils are for external use only. Benefits Of Cassia Essential Oil Assists In Treatment Of Arthritis Increases Blood Circulation Reduces Depression Helps Menstrual Cramping Boosts Immune System Antibacterial Fights Sore Throats Natural Insecticide Helps Fight Diabetes Helps Fight Colds And Flu