Coenzyme Q10 (also called ubiquinone) is present in almost all cells, where it is necessary for mitochondrial energy production.  The body's highest concentrations of Coenzyme Q10 (CoQ10) are found in the heart, where constant chemical energy availability is imperative.  In addition to its benefits for cardiac function through energy production, CoQ10 also functions as a powerful fat soluble antioxidant, providing protection against free radical attack for vascular structures, as well as for other tissues.  CoQsol-CF® is a unique, patent-pending formula of CoQ10, food grade d-limonene (which serves to solubilize CoQ10), and tocopherol (vitamin E).  This combination creates a liquid, crystal-free solution of CoQ10 that provides enhanced bioavailability.  By improving dissolution, absorption is enhanced.*