Astragalus is native to northern China and the elevated regions of the Chinese provinces Yunnan and Sichuan. The portion of the plant used medicinally is the four- to seven-year-old dried root collected in the spring.

Astragalus root has played a prominent role in traditional Chinese medicine for hundreds of years. According to the University of Maryland Medical Center, modern scientific research indicates that astragalus root extract does, in fact, contain compounds that may make it useful in treating a variety of medical conditions, including cancer and heart disease.

Astragalus is used by traditional Chinese doctors to stimulate the immune system. Chinese doctors have used astragalus to fight the flu and the common cold. Astragalus contains polysaccharides that are thought to play an important role in influencing the immune system. Astragalus also contains saponins called astragalosides, along with flavonoids and triterpenes. Astragalus Extract is strengthening the defensive energy and superficial resistance, promoting pus discharge and tissue regeneration, and inducing diuresis to cure edema.

1, Enhance immunity, improve the body's resistance to disease.
2, Antiviral activity. Antiviral principle.
3, Anti-stress effect.
4, As a growth promoter.
5, Astragaloside improve heart and lung function.