Astragalus membranaceus
The Great Protector of Qi
500+
Published Studies
Cycloastragenol
Telomerase Link
2,000+ yrs
Traditional Use
Top 50 Herb
TCM Status
Astragalus (Huang Qi in Chinese) is one of the foundational herbs in Traditional Chinese Medicine, classified as a qi-tonifying adaptogen. Its root has been used for over 2,000 years to strengthen the body's 'wei qi' (protective energy / immune shield). Modern research has revealed its remarkable ability to support immune function, cardiovascular health, and â uniquely â telomere length preservation through telomerase activation, making it one of the most exciting herbs in longevity research.
Astragalus is one of the '50 fundamental herbs' in TCM, first described in the Shen Nong Ben Cao Jing (circa 200 AD) as a superior tonic for strengthening qi. It was traditionally used for fatigue, weakness, loss of appetite, and to support the body's ability to resist seasonal challenges. In TCM theory, Astragalus strengthens the 'wei qi' â the body's outermost layer of defense â making it a primary herb for immune resilience. It was commonly combined with other tonic herbs like Ginseng and Reishi in classical formulations.
Supports immune system resilience and natural defenses
Contains cycloastragenol â activates telomerase enzyme
Supports cardiovascular health and circulation
Promotes healthy energy and reduces fatigue
Supports kidney and adrenal function in TCM tradition
Hepatoprotective â supports liver health and detoxification
Bioactive Compound Profile
The primary marker compound. Studied for cardioprotective, hepatoprotective, and anti-inflammatory effects through Nrf2 and NF-ÎșB pathway modulation.
Derived from astragaloside IV. Identified as a telomerase activator â the enzyme that maintains telomere length, a key biomarker of cellular aging.
Complex polysaccharides that activate macrophages, dendritic cells, and lymphocytes through TLR-4 receptor binding.
Phytoestrogenic flavonoids with antioxidant activity. Calycosin supports vascular health through nitric oxide signaling.
An isoflavone with demonstrated effects on bone metabolism, cardiovascular function, and antioxidant defense.
Astragalus has been studied in over 500 published papers, with particular excitement surrounding its telomere-related research. Cycloastragenol (CAG) â a compound derived from astragaloside IV â was identified as a telomerase activator and became the basis for TA-65, a commercialized anti-aging supplement. A 2009 study in Aging Cell demonstrated that CAG increased telomerase activity in human immune cells. Beyond longevity, Astragalus polysaccharides (APS) have been extensively studied for immune modulation, with a 2014 meta-analysis reviewing 34 clinical trials of APS as an immune adjuvant. Astragaloside IV has been investigated for cardioprotective effects through Nrf2 pathway activation.
*These statements have not been evaluated by the Food and Drug Administration. This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare provider before starting any supplement regimen.