Botanical
Astragalus
Also known as: Huang qi, Astragalus root, Membranous milk vetch, Astragalus Extract (Astragalus membranaceus)
Astragalus root extract is a traditional Chinese medicine ingredient studied for potential immune-supporting and adaptogenic properties. Evidence for human efficacy is limited and primarily from small trials, with most research conducted in Asia.
Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.
Primary uses
- Immune modulation
- Prevention
- Adaptogen
- Traditional tonic
- Immune system support
- Stress adaptation
- Energy and stamina
- Exercise recovery
How it works
- Increases T-cell activity
- Stimulates macrophages
- Promotes antibody production
- Telomere support (TA-65 extract)
Dosage
- Typical range
- 500-1000mg extract 2-3x daily
- Timing
- Daily for prevention
- With food
- Either way
- Duration
- Can use long-term for prevention, not during acute infection
- Special populations
- Those wanting immune support, elderly
Forms
- Root extract
- Dried root slices
- Standardized extract
- TA-65
- Powder extract· 70/100
- Capsule· 70/100
- Dried root· 70/100
- Decoction· 70/100
Safety
Common side effects
- Rare, well tolerated
Contraindications
- Autoimmune diseases
- Immunosuppressant use
- Active infection (some traditions say don't use)
Products containing Astragalus
Top-scoring supplements in our catalog that list Astragalus on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.
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Known interactions
Evidence notes
Traditional use supported by preliminary research
Grade B: Some human trials support key claims; further confirmation needed.
Astragalus compared head-to-head
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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.