Evening primrose oil (EPO) contains essential fatty acids that have several beneficial effects on the body.
EPO is a source of gamma-linolenic acid (GLA), which, when used topically, has been shown to be useful in the management of atopic dermatitis.
EPO also contains prostaglandin E1 precursors, which, when deficient, can contribute to many female hormone balancing issues, including PMS symptoms such as depression, irritability, breast pain, and fluid retention. A prostaglandin E1 deficiency can also contribute to menopausal symptoms, including hot flashes.
EPO also inhibits leukotriene synthesis, which is an inflammatory mediator and can therefore be used to reduce systemic inflammation in the body.