Review (5/5): Very nice fragrance.
This oil has a very nice fragrance. The label says, "Pure Ceylon Cinnamon Leaf Oil With 75% Eugenol Content". "Ceylon Cinnamon" means Cinnamomum verum, or "true cinnamon", from Sri Lanka (which used to be called Ceylon). I'm assuming "Cinnamon Leaf Oil" means it was made from the leaves and not the bark.
This oil smells a little like cloves due to the high eugenol content. Most of the eugenol in cinnamon is in the leaves. Cinnamon oil made from bark has a lot lower eugenol content. Ceylon cinnamon oil made from cinnamon bark, which I haven't tried yet, might have a different fragrance than oil made from leaves.
There are several different kinds of cinnamon trees used to make cinnamon. Most cinnamon used in foods and to make cinnamon oil is from Cinnamomum cassia. C. cassia is no less real or true cinnamon than C. verum; it just doesn't happen to have the word "verum", which means "true" or "real", in its scientific name. C. cassia also has a very nice fragrance and flavor. C. verum is rarer and more expensive.
Cinnamon oil and eugenol are effective snake and cat repellents. So if you try this oil and your cat gets cranky or your snake leaves this might be why. Dogs and deer don't like it either.