Evening primrose oil is notable for its richness in essential fatty acids (gamma-linolenic acid and gamma-linolenic acid - GLA), which are necessary for the proper production of prostaglandins (precursors to hormones that regulate many of our body's functions). A GLA deficiency triggers a series of problems such as dry skin and irritations, liver abnormalities, impaired prostaglandin production, and even growth problems in children. Furthermore, evening primrose oil has regulatory effects on estrogen, progesterone, prolactin, and prostaglandin levels, making it a valuable ally in combating premenstrual symptoms (fluid retention, irritability, abdominal pain). GLA occurs naturally in the triglycerides that make up vegetable oils, in vegetables, and in some nuts; however, one of the best sources is evening primrose seed. The need for supplemental evening primrose oil is increasing daily in modern society. where the intake of vegetables, greens, and unsaturated oils is decreasing. The usual amount of GLA in evening primrose oil is 9%, but higher quality oils reach up to 10%. The addition of vitamin E (tocopherol) to the formula acts as a cellular antioxidant and protects the oil from rancidity, thus ensuring its quality. Format: Bottle of 100 softgels. Directions for Use: Take 3 to 5 softgels daily with plenty of liquid, before meals.