NOW Evening Primrose Oil 500 mg -100 softgels1750 Evening Primrose 500mg. 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.* By supporting the bodys healthy immune system responses, GLA may help to maintain normal skin barrier function, as well