To your wholistic health 
I prefer to use Young living brand cinnamon oil, because it is absolutely potent, pure, and ingestible, therapeutic grade!
Native to Sri Lanka, Ceylon cinnamon, or true cinnamon, is a tall, leafy bush that produces fragrant bark and leaves.
A member of the laurel family, it is well known the world over as an aromatic culinary spice. Cinnamon Bark essential oil is steam distilled from the inner bark of the tree and has a warm, spicy aroma that evokes memories of the holidays when diffused. Cinnamon Bark Vitality™ contains antioxidants and may provide immune and general wellness support when taken as a dietary supplement.* Cinnamon Bark and Cinnamon Bark Vitality are the same essential oil.
Cinnamon Bark Vitality contains antioxidants and may provide immune and general wellness support. In addition, it can be used to add a familiar, warm and spicy flavor to your favorite foods and beverages.
I add cinnamon oil to my coffee 
Native to China, cassia is an aromatic evergreen tree with a documented history of use reaching back to Biblical times.
It is one of several varieties of Cinnamomum used for its aromatic bark, and it typically grows to a height of 30−50 feet. In the Bible’s Old Testament, Cassia was mentioned as a holy anointing oil and was a key ingredient in temple incense. Closely related to Ceylon cinnamon, which is used to obtain Cinnamon Bark essential oil, Cassia has a slightly sweeter aroma with higher levels of coumarin and trans-cinnamaldehyde.
