Solaray Flaxseed Oil is made with organic flaxseed and offers one of nature's most plentiful sources of omega-3 fatty acids with a healthy complement of omega-6 and omega-9 fatty acids. To help maintain potency, the Solaray brand has included Duralox oxidation inhibitor, a natural antioxidant system, to help control lipid peroxide levels. Flaxseed oil contains compounds known as lignans. Lignans are phytoestrogens. Solaray Flaxseed Oil is 100% expeller pressed, unrefined and unfiltered to provide the purest form available. No solvents have been used.