Estd 1989 Pathway To A Better Life Pure & Unrefined Gluten Free · Non-GMO From Our Family To Yours Nurture and Nourish Your Body with Barlean's Evening Primrose Oil EPO is revered because it contains a significant amount of Gamma-Linolenic Acid (GLA). GLA is created in the body from dietary essential fats such as those found in flax seed oil. However, in some people GLA is not produced adequately. EPO is offers a direct source of GLA for these individuals.