The fish oil that started it all... Nordic Naturals offers the only 100% Arctic cod (Skrei) liver oil on the market. No fish body oils or synthetic vitamins or additives are ever used. No other brand can honestly make the same claim. Over the past decade, we have perfected our three-step Gold Standard system that allows Nordic Naturals Arctic Cod Liver Oil to test at 10 times lower than the limits set by the strict European Pharmacopoeia Standard for purity and freshness. Vertically integrated from catch to finished product, we deliver the freshest cod liver oil in the world.