AD naturam Ceylon cinnamon essential oil improves breathing, is also anti-fatigue and stimulating. It is also known for its great effectiveness against ailments (respiratory, intestinal, urinary, etc.), killing 99.9% of microbes. The Ceylon cinnamon tree is a tree that can reach fifteen metres in height. Originally from present-day Sri Lanka, its leaves are long and shiny and its small round flowers produce dark blue fruits. This tree measures 10 to 15 m and is the main species of cinnamon. After having crossed through ancient Greece and Rome, cinnamon became famous in the Middle Ages. Thanks to Venetian merchants, apothecaries prepared fortifying remedies and great medieval lords used it to flavour their dishes. This strong spice subtly concealed meat that was a little outdated due to lack of refrigeration. Its Latin name "Cin-a-momum" comes from the meaning "wood from China and smelling good".