Cinnamon powder comes from the bark of tropical, evergreen trees. In order to harvest cinnamon, it’s peeled off of the inside of the bark of the tree. There are two main types of cinnamon: Ceylon and Cassia.The majority of the cinnamon you’ll find at the grocery store is Cassia. Ceylon grows primarily in Sri Lanka and isn’t as common.Ceylon cinnamon may sometimes be referred to as “true” cinnamon. But there’s some debate about whether or not that’s the case. Ceylon and Cassia are both cinnamon, but from different parts of the world and from slightly different types of trees.You’ve probably sprinkled cinnamon on foods like toast, rolls, and desserts. But cinnamon has uses other than for topping sweets, including improving your health.