Evening Primrose Oil ( 500 mg, 250 Softgel )

Evening Primrose Oil ( 500 mg, 250 Softgel ) NOW Evening Primrose Oil contains high levels of Gamma Linolenic Acid (GLA), the active ingredient in Evening Primrose Oil. Evening Primrose Oil is a nutritional oil containing 84% polyunsaturated fats. Linoleic acid and GLA are enhanced essential fatty acids.