Supports Healthy Heart Muscle With Vitamin E & Sunflower Lecithin Non-GMO A Dietary Supplement How It Works: 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 positive impact on cardiac function through energy production, CoQ10 also functions as a powerful fat soluble free radical scavenger for vascular structures, as well as for other tissues.