Evening primrose oil is extracted from the seeds of the evening primrose, a beautiful plant with bright yellow flowers. Because of key nutrients and chemicals within the oil, it has been a popular folk remedy for many centuries. Proponents of evening primrose oil claim that it can treat a wide variety of conditions and modern evidence supports some of these assertions.
A 2005 found some evidence that taking oral supplements of evening primrose oil promotes smooth skin. It may also help with skin elasticity and firmness while maintaining hydration.
According to the study, the skin needs a gamma-linolenic acid (GLA) for ideal structure and function, but cannot create GLA on its own. Evening primrose oil is rich in GLA, allowing the skin to meet its nutrient needs.