Allergy research flax seed oil provides an organically sourced flax oil flax seed oil is the most potent known source of alpha linolenic acid an essential omega 3 fatty acid it is extracted from organically grown flax seeds using a special cold pressing process which minimises the damaging effects of light oxygen and heat flax seed oil is also rich in the omega 6 essential fatty acid linoleic acid as well as the omega 9 essential fatty acid oleic acid