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Woad root (Isatis tinctoria) is a plant that belongs to the Brassicaceae family and is native to Europe and western Asia. It has been cultivated for thousands of years for its medicinal properties and its use as a natural blue dye.

In traditional medicine, woad root has been used to treat a variety of conditions, including inflammation, infections, and skin disorders. It contains a number of bioactive compounds, including indigo, which is responsible for its blue color and has been shown to have anti-inflammatory and antioxidant effects.



  • Anti-inflammatory Properties: Woad root contains bioactive compounds, such as indigo and indirubin, that have been shown to have anti-inflammatory effects. It has been used traditionally to treat conditions such as rheumatoid arthritis, asthma, and bronchitis.

  • Antimicrobial Effects: Woad root has been shown to have antimicrobial effects against a range of pathogens, including bacteria, viruses, and fungi. It may be particularly effective against respiratory infections, such as the common cold and influenza.

  • Skin Health: Woad root has been traditionally used to treat skin conditions such as eczema, psoriasis, and acne. It contains compounds that may help reduce inflammation and improve skin barrier function. It is sometimes used topically in the form of a cream or ointment.



  • Woad root may cause allergic reactions in some people when taken orally or applied topically.

  • Woad root may interact with certain medications, including blood thinners, and should not be used by people taking these medications without first consulting a healthcare provider.

  • Woad root may lower blood sugar levels and should be used with caution in people with hypoglycemia or diabetes.

  • Woad root may cause hormonal imbalances and should be used with caution in people with hormone-sensitive conditions, such as breast cancer or endometriosis.

  • Woad root may affect liver function and should be used with caution in people with liver problems or who are taking medications that affect liver function.


Tastes Like:

Woad root (Isatis tinctoria) has a bitter and slightly astringent taste that some people may find unpleasant. The root can also have a slightly sweet or sour taste depending on how it is prepared.



  • Decoction: To make a decoction, you will need to simmer the woad root in water for about 20-30 minutes. This will extract the active compounds from the root and make them easier to absorb. The decoction can be drunk as a tea, either hot or cold.

  • Powder: The root of woad can be ground into a fine powder and taken as a dietary supplement or added to recipes. The powder can be mixed with water or juice, or added to smoothies, soups, or other foods.

  • Tincture: Woad root can also be prepared as a tincture, which is a concentrated liquid extract made by steeping the root in alcohol or vinegar. Tinctures are usually taken in small amounts, diluted in water or juice.

Woad Root (Ban Lan Gen)

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