What is Coenzyme Q10? Coenzyme Q-10, also known as ubiquinone and CoQ-10, is an essential component of our cells energy production. Almost all of the body’s energy is produced through aerobic cellular respiration, generating energy in the form of ATP. Human organs with the highest energy requirements - such as the heart, liver and kidney - have the highest CoQ-10 concentrations. As we age, our body’s natural production of CoQ-10 slows down, making it harder to convert fats and sugars into energy. Natrol CoQ-10 is an antioxidant that helps cells work more efficiently in the heart and throughout the body. CoQ-10 100mg is a commonly recommended daily dosage for maintaining healthy CoQ-10 levels.