Dietary supplement that helps treat skin, menstrual or pre-menstrual symptoms, bloating or breast pain, menopause, joint pain, as a preventive of aging, among others. Evening Primrose or Primula, is a plant with striking yellow flowers that grows in temperate regions. The oil is extracted by pressing its seeds and maintains its abundant amount of essential fatty acids. In fact, the gamma linoleic acid it contains is essential because from it, the body can synthesise arachidonic and gamma linolenic acids but can not do so in reverse, and its deficit would cause dryness and skin irritations, abnormalities in the liver, alterations in the production of certain molecules and even growth problems in children.