Eskimo-3® is a rich source of EPA and DHA; it contains 38% to 40% polyunsaturated omega-3 fatty acids, the highest concentration of omega-3 fatty acids naturally obtainable from fish oil. Eskimo-3® is also purified by a proprietary process that preserves the beneficial active constituents of the whole oil, and contains no detectable dioxin, DDT, PCB, or heavy metals or toxins that are present in many commercial fish oil preparations. Many fish oils have been found to contain varying levels of these harmful substances. Eskimo-3 has been shown by an independent laboratory to be free of these contaminants.