Coenzyme Q10 (CoQ10) a fat-soluble, vitamin-like compound, is a powerful antioxidant that supports healthy heart function and cellular energy production. It is found in every cell of the body and functions as a powerful antioxidant to help protect cells from free radical damage. Free radicals are harmful compounds generated during normal body processes like breathing and digestion, and from exposure to environmental hazards such as UV sunlight and smoke. Free radicals attack healthy cells, damaging their membranes, DNA and other components, compromising normal cell function.