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Isatis Root (Ban Lan Gen)
板蓝根 (Bǎn Lán Gēn) · Isatis tinctoria
China's go-to herb for viral infections — sold in every pharmacy as granules. Used for sore throat, fever, and epidemic prevention. Massively popular during flu seasons and COVID.
Good For
Key Benefits
May support immune system function
Traditionally used to strengthen defensive qi and resistance to illness
How to Take
Safety & Interactions
Possible Side Effects
- Generally well tolerated at recommended doses
- Mild digestive upset possible in sensitive individuals
Do Not Use If
- Known allergy to this plant or related species
- Consult healthcare provider if pregnant or nursing
Drug Interactions
- No major drug interactions documented at standard doses
- Inform your doctor of all supplements you take
Traditional Use
In Traditional Chinese Medicine, 板蓝根 (Bǎn Lán Gēn) has been used for centuries. TCM practitioners use it to reinforce the body's defensive energy (wei qi).
Modern Research
Research is still emerging for this herb. Most evidence comes from animal studies, in-vitro experiments, and traditional use records. Limited clinical trial data is available. The herb shows promise but requires more rigorous human studies to confirm efficacy.
View all studies on PubMed for Isatis tinctoria →Where to Buy
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