Gamma-linolenic acid (GLA) is a type of omega-6 fatty acid found in various plant oils, such as evening primrose oil, borage oil, and black currant seed oil. It plays a crucial role in the body by contributing to the production of important signaling molecules called prostaglandins, which help regulate inflammation and other physiological processes. GLA is often used as a dietary supplement for its potential health benefits, including support for skin health, hormonal balance, and relief from symptoms of conditions like eczema and arthritis. However, more research is needed to fully understand its effects and optimal dosages.