Nature's Way White Oak Bark Capsules, 100-Count
White Oak Bark has been carefully peeled in small sections from wild trees so no serious damage to the tree occurs. White Oak Bark was used extensively by the American Indians and early American settlers because of it's astringent qualities. The White Oak tree supplied the American Indians with a crucial part of their diet: acorns.The key substances in White Oak Bark are tannin and quercin as well as the minerals manganese, calcium, and zinc. White Oak Bark has qualities that help tighten tissues and toughen blood vessels, so it has the ability to treat diarrhea, hemorrhoids and, varicose veins. Other uses for the bark are to stop nosebleeds, treat strep throat and inflammation.