Evening Primrose Oil is extracted from the seeds of the primrose plant, and is a rich source of Gamma Linolenic Acid (GLA); an essential fatty acid in the Omega 6 family that many experts believe may help to support hormone balance, promote heart and skin health, and regulate the body’s production of prostaglandins. Prostaglandins are hormone-like substances that act as chemical messengers between cells. They are believed to help to maintain regular hormone balance and may counter the effects of Premenstrual Syndrome (PMS).