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Gluten-free Non-GMO & Hypoallergenic Dietary SupplementMade with Quality Kaneka UbiquinolActive antioxidant form of CoQ10 Support for energy metabolism and cardiovascular health.Ubiquinol is the active antioxidant form of CoQ10 (ubiquinone). The presence of two additional hydrogen atoms allow ubiquinol to work as an antioxidant. Ubiquinol comprises the majority of the ubiquinone/ubiquinol pool in the plasma of healthy subjects. Ubiquinol may be especially important for older individuals and subjects with greater levels of oxidative or physical stress.