Cranberry Rx provides 250 mg of a North American grown, high-potency, cranberry juice concentrate that has been standardized to contain a minimum of 3% oligomeric proanthocyanidin content (OPC) and a minimum of 6% quinic acid. The antioxidant ORAC value of this cranberry concentrate remains quite high due to the gentle processing of the fresh berry indicating that this concentrate has very potent antioxidant capacity. Cranberry Rx is GMO free and is manufactured without the use of solvents, preservatives, sugars, flavorings or color.