White Oak Bark [Immune] is rich in tannin. Tannins give white oak bark its bitter and astringent qualities and may have an astringent effect on tissues.
This herb is commonly used for supporting skin health.
Each capsule contains 460 mg white oak bark.
Take 2 capsules with a meal three times daily. Stock No. 730-7 (100 capsules) Can be constipating when taken internally. Can interfere with digestion (take between meals). Contains large amounts of tannin, which may be associated with mouth and stomach cancer with consistent, long term use. Use only for short periods internally.