A dietary supplement to support skin and nerve health and premenstrual functional needs. Primrose is a pure, natural vegetable oil processed from the seeds of the Evening Primrose plant. Oil of Evening Primrose is 70% Linoleic Acid and is unique in providing a direct dietary source of the vital Gamma Linolenic Acid. FoodScience of Vermont guarantees a minimum of 117 mg (9%) Gamma Linolenic Acid (GLA) per 1300 mg capsule and a minimum of 45 mg (9%) Gamma Linolenic Acid (GLA) per 500 mg capsule. Gamma Linolenic Acid (GLA) is converted by natural processes in the body to prostaglandins, which have a range of important functions such as regulation of brain function and the immune system. Easy-to-swallow softgel capsule.