Cinnamaldehyde is one of the important pharmaceutical raw materials. Commonly used in external medicine and synthetic medicine. Because it can promote blood circulation, warm the skin, tighten skin tissue, external massage can make the limbs and body comfortable, and the phenomenon of water retention can be fully improved, and it has a strong fat decomposition effect. It is effective in softening and removing skin scars and fibroids. Disperse congestion. It has antithrombin effect, has sedative, analgesic, antipyretic, anticonvulsant and other effects. It also has the effect of inhibiting mold.