Evening Primrose Oil contains: Essential Omega-6 fatty acids. Gamma-linolenic acid (GLA). Omega-6 can be sourced from a variety of different foods, such as eggs, avocados, nuts and many vegetable oils. Evening primrose oil, however, has the highest amount of Omega-6 of any food substance. Evening primrose oil is extracted from the seeds of the evening primrose plant (Oenothera biennis). The seeds of the evening primrose plant yield between 7% and 10% GLA. The body does not produce essential fatty acids, so it is necessary to obtain them through our diet or through dietary supplements. Omega-6 is highly beneficial for supporting the maintenance of healthy skin. It also assists in the relief of minor skin complaints and general health and well-being.