Organically Grown Flaxseed with Duralox®. 3 Daily Formula. Flaxseed is one of nature's most plentiful sources of Omega-3 Omega-6 and Omega-9 Fatty Acids. KAL Flaxseed Oil softgels are made with organically grown flaxseed oil 100% cold pressed and with no solvents used. These softgels also contain Duralox® oxidation inhibitor a natural antioxidant system to help control lipid peroxide levels. Flaxseed oil naturally contains lignans which exhibit estrogenic properties.