Evergreen Vitamins’ select Omega-3 Fish Oil not only supports the functions of the brain, joints, and circulatory system, it also strengthens the immune system.* select Omega-3 uses fish oils from the cleanest sources on earth. A series of advanced molecular distillation processes remove the impurities including PCBs and heavy metals. The state-of-the-art encapsulation process ensures an oil as pure as any oil available worldwide.