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| Form | Bioavailability | Best For |
|---|---|---|
| Standardized Root Extract | Moderate-High | General use — standardized to astragalosides and polysaccharides |
| Astragalus Polysaccharide (APS) Extract | Moderate | Immune support — concentrated polysaccharide fraction |
| Cycloastragenol (TA-65) | High | Anti-aging — isolated telomerase activator, expensive |
| Dried Root Slices/Powder | Low-Moderate | Traditional decoctions and soups — classic TCM preparation |
Bioavailability: Moderate-High. Best for: General use — standardized to astragalosides and polysaccharides.
Bioavailability: Moderate. Best for: Immune support — concentrated polysaccharide fraction.
Bioavailability: High. Best for: Anti-aging — isolated telomerase activator, expensive.
Bioavailability: Low-Moderate. Best for: Traditional decoctions and soups — classic TCM preparation.