NOW Foods - CoQ10 Cardiovascular Health 50 mg. - 100 SoftgelsNOW Foods Co Enzyme Q-10 is a vitamin-like compound also called ubiquinone. CoQ10 is an essential component of cells and is necessary for mitochondrial energy production. Years of research has shown that NOW Foods Co Enzyme Q-10 supports healthy cardiovascular and immune system functions in addition to its vital role in energy production. NOW Foods Co Enzyme Q-10 is Pharmaceutical (USP) Grade.