Barlean’s Organic Evening Primrose Oil Evening Primrose Oil is highly prized for its high content of a special fatty acid called Gamma-Linolenic Acid (GLA). Ordinarily, GLA is created in the body from dietary essential fatty acids such as those found in flax oil. However, in some people GLA is not adequately produced in the body. Evening Primrose Oil offers a direct source of GLA for these individuals Evening Primrose Oil is highly prized by women who strive for: Clear, smooth skin, Lustrous hair and strong nails, Hormonal balance, and Balanced mood. Evening Primrose Oil may support the structure and function of: Inflammatory and immune response, Cardiovascular system, Glands and organs responsible for hormone metabolism, Nerve function and joint health, and Skin cell production.