What is evening primrose oil? It is an oil extracted from the seeds of the plant of the same name. This plant (Oenothera biennis) originally grows in North America, where Native American tribes used it to heal wounds. It was not introduced to Europe until the 18th century, where it is also cultivated for ornamental purposes. This oil contains a rare fatty acid called gamma-linolenic acid (GLA) and is widely used as a dietary supplement to treat certain menstrual problems. It also contains stearic, palmitic, oleic and linoleic acids.What is evening primrose oil used for? Gamma-linolenic acid has proven beneficial properties for womens health, such as: Reduces pain associated with menstruation (premenstrual syndrome). Improves the condition of the womans hormonal system. But using evening primrose oil as a natural supplement has other benefits: It improves cases of male impotence. Protects the liver from the harmful effects of alcohol consumption.Why is it combined with vitamin E? An adequate intake of vitamin E is essential to prevent cellular aging, as this vitamin has an antioxidant effect. Therefore, combining it with evening primrose oil is very healthy, especially for women.Product used Oenothera biennis L. (seeds) ... 515 mgComposition per pearl Evening primrose oil ... 515 mg Vitamin E ... 5.11 mg Gelatin ... 137 mg Glycerin ... 63 mg Instructions for use Take three (3) capsules daily, one (1) with each meal. Swallow with a large glass of water.