The body needs both forms of CoenzymeQ10 (ubiquinone & ubiquinol): ubiquinone is critical for the production of cellular energy, while ubiquinol functions as an antioxidant. Our bodies are capable of converting ubiquinone to ubiquinol, and in turn converting ubiquinol back to ubiquinone, but many factors contribute to the lessening of CoQ10 levels over time, when they are not replenished through supplementation.

Without ubiquinone (standard CoQ10), energy production stops, and death results.