They're both from the genus cinnamon, but the one you want, the real stuff, is a species that is v-something or other. If the label doesn't specify cinnamon v-something it's the closely related spice but is not the same. It's possible that you've never had real cinnamon because it really is something you have to look for. It's not terribly more expensive than the other stuff (maybe 1.5x?) but it is noticeably different.
10/4/15 at 8:27pm