Herbal Supplement. Standardized extract. Nutritionally supports healthy liver function. Certified Potency Milk-Thistle Extract (Milk-Thistle Power ) is the highest quality, most potent and most effective form of Milk Thistle Extract available. Milk-Thistle Extract is standardized with the greatest concentration of naturally-based active principles, thus making it not only one of the world's finest and purest plant extracts, but also faster-acting and more assimilable than unconcentrated Milk Thistle. Certified Potency is your guarantee of dependable consistent quality and potency in every capsule every time! Only from Nature's Herbs. Our exclusive FreshCare System inhibits normal plant oxidation, maintaining product potency and extending freshness. It includes all-natural antioxidants in each capsule, oxygen-absorbing packets in each bottle, special air-tight seals and amber glass packaging for uncompromised quality. (This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.)