White Oak Bark, or the Quercus alba is a hardwood tree native to the Eastern United States whose wood resists rot; certain of this wood is commonly used for making wine barrels. The bark of the tree is grey to white colored and has a tendency to peel off the tree. It also goes by the common name of Tanner's bark because it contains Tannin.
Warning: Topical use is cautioned in extensive cases of eczema or skin damage.
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