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White Oak Bark Purchase & Information

Alternative Names

Chêne Anglais, Chêne Blanc, Chêne Blanc d'Amérique, Chêne Commun, Chêne Pédonculé, Common Oak, Corteza de Roble, Durmast Oak, Écorce de Chêne, Écorce de Chêne Blanc, Eichenrinde, English Oak, Pedunculate Oak, Quercus Cortex, Sessile Oak, Stave Oak, Stone Oak, Tanner's Bark, Tanner's Oak, White Oak, White Oak Bark

Scientific Name

Quercus Alba

Why Do People Use White Oak Bark?

Oral preparations of Quercus alba (White Oak bark), such as white oak bark powder, are used to treat colds, diarrhea, cough and bronchitis, fever, and to improve digestion. Topically - White oak bark is applied to the skin in order to treat inflammatory skin conditions, throat, mild inflammation of the mouth, anal region, and genital and for chilblains.

Is It Safe To Use?

Possibly Safe - Oral consumption of white oak bark powder for a period of 3 to 4 days to treat diarrhea is considered safe. Moreover, its topical application for 2 to 3 weeks on intact skin is also considered safe. Avoid In Breast Feeding & Pregnancy - White oak bark should be avoided in pregnancy and lactation because there is scarce information available in this regard.

How Effective Is White Oak Bark?

To rate the effectiveness of white oak bark powder, there is less authentic information available.

How White Oak Bark Works?

Quercus alba contains 8 to 20% tannins such gallotannins. Gallotannins are widely hydrolyzed in the upper small intestine and produce astringent effects in the colon. Some studies recommend that tannins may have antimicrobial, antiviral and CNS depressant effects. Various studies also recommend that they can depress growth. Tannins apply an astringent impact on mucosal tissues. This activity dehydrates the tissue externally forming a protective layer of harder, internally reducing secretions and dead cells. Plants having at least 10% tannins maybe responsible for the necrosis of liver, kidney damage and gastrointestinal disturbances. According to initial studies, tannins may also lead to cancer.

What Are The Side Effects /Adverse Reactions of White Oak Bark?

Oral consumption of white oak bark can cause adverse effects in some cases such as kidney damage, gastrointestinal disturbances and necrosis of the liver.

How White Oak Bark Interacts With Other Herbs and Supplements?

Iron - Using combination of white oak bark powder and iron may alter levels of iron salts in body. Tannin Containing Herbs - Concomitant consumption of Quercus alba and herbs having tannins may exacerbate tannin toxicity.

How White Oak Bark Interacts With Drugs?

Not known.

How White Oak Bark Interacts With Foods?

Not known.

How White Oak Bark Interacts With Lab Tests?

Not known.

How White Oak Bark Interacts With Diseases and Conditions?

Cardiac Conditions - Patient suffering from cardiac insufficiency may be adversely affected by the consumption of white oak bark powder. Eczema - Topical application of Quercus alba may cause eczema. Hypertonia - White oak bark powder may cause hypertonia. Infection - White oak bark baths are contraindicated in people with infectious or febrile diseases. Kidney Dysfunction - Oral consumption of white oak bark powder may worsen kidney related issues. Liver Dysfunction - Oral consumption of white oak bark may adversely affect liver related problems.

What Should Be the Dose/Administration of White Oak Bark?

ORAL For diarrhea, most common oral dosage of white oak bark is to take one cup tea up to thrice every day for consecutively 3 to 4 days. Such tea is prepared by adding one gram coarsely powdered white oak bark powder to 150 mL cold water then boil for a short period of time and then strain. TOPICAL To use as compresses, rinses, gargles and poultices, mix 20 grams of white oak bark powder in 1 L of water. For baths, mix five grams of oak bark powder in 1 L of water combined with bath water. White oak bark should not be utilized topically longer than 2 to 3 weeks



General Certificate of Analysis (COA)

Specification sheet links below are a standard copy of the COA less the batch or lot number and manufactures dates. Specification sheet can be dated and should only be considered as a general information. Please contact and request an up to date COA if needed for specific updated information before placing order by filling out the contact form with product name and SKU number. If ordering quantities of twenty five kilos or more contact for availability.

Specification Sheets

White Oak Bark Powder


These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.

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