From the Manufacturers label:
Manufactured for Mason Vitamins, Inc.
Jarrow Formulas Ginger, Supports Gastroinestinal Health, 500 mg, 100 ...
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Nature's Answer Ginger Rhizome, 90-Count
Nature's Way Premium Herbal Ginger Root, 1,100 mg per ...
Nature's Way Ginger Root; 1.1 gram Ginger Root per ...