1. Eucommia is the dried bark of the plant Eucommiaceae, which is a valuable Chinese tonic herb.

2. Eucommia tea made from Eucommia leaves has many effects such as tonifying the liver and kidney, strengthening the bones and muscles, lowering blood pressure, and stabilizing the fetus.

3. In China, Eucommia is a unique Chinese medicinal herb, which has a long history of medicinal use and has a wide range of clinical applications.

4. However, it is an endemic herb, and its efficacy is also very significant, so there is a trend of gradual decrease in quantity.

5. As a result, the use of Cortex Eucommiae has gradually declined.