NOW Super Primrose Oil is a great potency Evening Primrose (EPO) supplement containing naturally occurring Gamma Linoleic Acid (GLA). GLA is a fatty acid that is important for healthy inflammatory and immune response. Evening Primrose Oil may be used to provide nutritional support for mild discomfort associated with PMS. visit us http://www.tasmanhealth.co.nz/now-foods-super-prim rose-1300mg/ for more details!!