Astragalus is called an adaptogen, meaning it helps protect the body against various stresses, including physical, mental, or emotional stress. A few other key components of Astragalus include triterpenoid saponins, isoflavonoids, flavonoids, polysaccharides, and trace elements. These antioxidant effects inhibit free radical production. In the body, free radicals damage cells and are linked to many health problems associated with aging. Historically, Astragalus has been used to strengthen the immune system given its antibacterial and anti-inflammatory properties. This herb can also be useful in supporting kidney function, blood sugar metabolism and gastrointestinal barrier function. Astragalus can be applied topically to the skin to increase blood flow and support wound healing as well. 
Benefits
Restore and enhance the body’s immune system
Support healthy adrenal and digestive function
Promote glucose balance
May have anti-tumor effects, specifically against melanoma and leukemia
Maintain healthy cardiovascular function
Promote a healthy physical, mental, and emotional response to everyday stressors