The role of borneol in Dong Tangcui is mainly reflected in the following points: First, borneol easily penetrates the blood-brain barrier. It can obviously relax the intercellular atresia zone of blood-brain barrier, thus accelerating the transfer between substances.

Second, borneol significantly promotes drug absorption. It can enhance transdermal absorption and is an ideal transdermal enhancer.

Thirdly, borneol has the effect of resisting ischemia and injury of circulatory system. It can alleviate myocardial injury caused by ischemia, relieve coronary artery spasm, promote the increase of coronary sinus blood flow, slow down heart rate and reduce myocardial oxygen consumption.

Fourthly, Borneolum Syntheticum has two-way regulation and protection effects on the central nervous system. It can not only soothe the nerves, but also refresh the mind, protect the central nervous system and improve the impaired awakening ability; It can also promote the division of glial cells and protect the secondary injury after cerebral ischemia.

Fifthly, borneol has strong antibacterial, anti-inflammatory, detoxification and analgesic effects. It can obviously inhibit the increase of capillary permeability in abdominal cavity of mice caused by acetic acid; Prolonging the pain response time and pain response caused by thermal stimulation; Can inhibit influenza virus.

Sixth, borneol can obviously promote wound healing. Increase granulation tissue structure and epidermal cell regeneration, repair skin accessory organs, and have strong wound healing effect.

Seven, it is borneol that can promote the apoptosis of mutant cells and induce the apoptosis of cancer cells. Especially can inhibit the occurrence and development of nasopharyngeal carcinoma, breast cancer and lung cancer. These studies have fully explained scientifically that borneol is a strange thing that integrates health preservation, health care, rehabilitation, prevention and treatment.