The composition of cypress leaves contains a volatile oil, the main component of the oil is α-cypress ketone, cumin ketone, cypress alkene, etc., at the same time, cypress also contains manganese, zinc, potassium, phosphorus, calcium and nitrogen and other trace elements, the cypress leaves decoction can play a role in the pharmacology to reduce the bleeding as well as shorten the bleeding time, and effectively play a role in hemostasis, and the leaves have a cough, asthma, expectorant and shocking effect. In addition, there are experiments show that the side of cypress leaves for diphtheria bacillus, Cattacoccus, Staphylococcus aureus and typhoid bacillus have mind ah inhibitory effect, the side of the side is also the main effect is: to stop coughing, bleeding and to prevent hair loss, the role of hair.

The reason why cypress leaves are considered to be able to play a role in preventing and treating hair loss is mainly because Chinese medicine attributes the cause of hair loss to the deficiency of kidney blood and body dysfunction, and cypress leaves are recorded in traditional Chinese medicine as having a good effect on stopping bleeding and removing dampness and heat, and also have a certain effect on regulating the body's circulation, which is in line with the Chinese medicine's explanation of hair loss, and therefore the cypress leaves are believed to have a This medicinal theory is in line with the explanation of Chinese medicine for hair loss, so the lateral cypress leaf is considered to have the effect of treating hair loss, and thus be widely spread.