CoQ10 (Coenzyme Q10) is a natural compound that boosts cellular energy and heart health but may cause nausea and digestive issues. Coenzyme Q10 suggested uses include for angina, chronic fatigue syndrome, congestive heart failure (CHF), diabetes mellitus, doxorubicin-induced cardiotoxicity (prevention), HIV/AIDS immunostimulant, high blood pressure (hypertension), mitochondrial cytopathies, muscular dystrophies, and myopathy (statin-induced). CoQ10 is a compound that helps generate energy and protect cells from oxidative stress. Learn how it may benefit heart, skin, brain, and lung health, as well as its potential risks and food sources. Coenzyme Q10 contains Coenzyme Q10 which is a vitamin-like substance that is important for life and health of every cell. It is required by the cells of the body to function properly and produce energy. It also helps to fight oxidative stress.