NOW® Evening Primrose Oil has naturally occurring Gamma Linolenic Acid (GLA), an Omega-6 fatty acid also found in Borage and Black Currant Seed Oils. Although the body can synthesize GLA from other dietary fats, it can be more efficiently utilized for bodily functions when consumed in its preformed state. Since healthy fats play a large role in hormone formation, Primrose oil can thus help optimize hormone levels in both men and women. Evening Primrose Oil 500mg from NOW® are cold pressed and hexane-free proving you with a source of essential fatty acids for the maintenance of good health.