What is the difference between ubiquinone and ubiquinol?

Ubiquinol and ubiquinone are both forms of CoQ10. Ubiquinone is the oxidized form of CoQ10 with which most people are familiar, but new research is finding ubiquinol to be the more effective supplement. In the body, CoQ10 must be converted to the usable form ubiquinol to provide antioxidant protection and generate cellular energy. Because ubiquinol (like that found in Biopro-Q) is pre-converted, it is ready for immediate use by the body, therefore allowing the body to utilize higher levels of CoQ10.*

*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.