It is a nutrient necessary to the functioning of every cell in your body. The greater the oxidative stress on a given organ tissue, the greater your need for Coenzyme Q10, which may explain why it is good for your heart. Ubiquinol is the active antioxidant form of ubiquinone, and is directly responsible for the powerful benefits long associated with CoQ10. It is pre-converted, so it is easily assimilated and utilized by your body. Preliminary research shows that ubiquinol is much more effective than ubiquinone.