Learn all about Evening Primrose Oil

Evening primrose oil's primary mechanism involves its gamma-linolenic acid (GLA) content, which the body converts to dihomo-gamma-linolenic acid (DGLA) and subsequently to prostaglandin E1 (PGE1, an anti-inflammatory substance). This pathway helps counterbalance inflammation-causing substances derived from other dietary fats. Additionally, GLA may support healthy cell membrane function and skin barrier integrity by providing essential fatty acids that maintain skin hydration and elasticity. In hormonal conditions, EPO may help influence how the body handles estrogen and reduce sensitivity to prolactin (another hormone), potentially explaining its effects on PMS and menopause symptoms.

Evening primrose oil is exclusively derived from the seeds of the evening primrose plant (Oenothera biennis), with no significant dietary alternatives providing comparable GLA levels. While borage oil and black currant seed oil contain higher percentages of GLA, their overall fatty acid profiles differ. The evening primrose plant itself cannot be consumed as food, making the extracted oil the only practical way to obtain its benefits. The seeds yield approximately 7-10% GLA, which is concentrated through cold-pressing processes that preserve the delicate fatty acids and prevent oxidation.