Cortex Cinnamomi Cassiae, ""Cinnamon Flesh"", is the oil-rich tender area, located under the outermost part of the bark of the trunk of old cinnamon trees
Belongs to the Lauraceae botanical family.

Class: Warm Interior Cold
Name:
Pinyin: Rou Gui
Pharmaceutical: Cortex Cinnamomi Cassiae
Other names: Gui Xin, Gui Pi
Description: Cassia Bark.
Properties:
Nature: Very hot.
Taste: Pungent, sweet.
Organ: Kidneys, Spleen, Bladder, Liver.
Toxicity: Non toxic.
Actions:
Tonifies Fire.
Benefits the Yang.
Disperses Cold.
Calms pain.
Warms.
Promotes circulation in the channels.
Moves Blood.
Comparisons:
Fu Zi is more effective to rescue Yang (Yang collapse syndrome).
Warning:
Contraindications: Excessive Heat in the Interior.
Bleeding from Heat.
Yin Deficiency, Fire rising.
Pregnancy.
Inhibited by: Chi Shi Zhi