Premium BioPQQ brand PQQ Vitamin-like nutrient with antioxidant properties*20 mg per servingVegetarian tabletsWhat is PQQ (pyrroloquinoline quinone)? Pyrroloquinoline quinone (PQQ) is a vitamin-like substance found naturally in plant foods, including fruits, vegetables, teas, legumes and fermented beans, as well as in eggs, some meat and dairy products and in human milk. PQQ is a known antioxidant thats currently under investigation for its role in cellular mitochondrial health.* About VitacostVitacost nutritional products are manufactured to high standards of quality, efficacy and safety. Each Vitacost product meets or exceeds the standards and requirements set forth in the FDAs Code of Federal Regulation (21 CFR, 111) Current Good Manufacturing Practices (cGMP). *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.