ProOmega contains 70% pure Omega-3, and is purified through molecular distillation to ensure the absence of impurities including PCBs and heavy metals. All Nordic Naturals products surpass all national and international pharmaceutical standards for freshness and purity, and are free from heavy metals, dioxins, and PCBs. Every batch is third party tested to guarantee exceptional freshness and purity levels. 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.