Omega-3s are essential fatty acids that many experts believe aid good brain and heart health as well as boosting circulation and the immune system. Gamma linolenic acid (or GLA) is part of the omega-6 family and is known for its role in easing the symptoms of PMS and supporting the growth of healthy skin, hair and nails. Meanwhile omega-9 plays a role in promoting heart health by supporting balanced cholesterol levels and improving immune function.