Coenzyme Q10 is an antioxidant found in virtually every cell in your body. In fact, it is found in the part of the cell that is responsible for creating energy and the highest concentration of CoQ10 is found in the heart. Unfortunately, as we age, our ability to produce CoQ10 on our own is reduced. For this reason, taking a CoQ10 supplement is an important way to promote heart health. As well, when taken daily over a three month period, CoQ10 is also an excellent supplement for helping to prevent migraine headaches.