Coenzyme Q10 Coenzyme Q10 is a non-specific immune intensifier, which takes part in cell metabolism and respiration. It has the functions of anti-coronary heart disease, increasing the output of the heart, reducing arrhythmia, and reducing hypertension. Humans get Coenzyme Q10 from two sources: from within the body, where it is synthesized, and from food. The concentration of Q10 in a person's body peaks in their twenties and then it declines with age. It drops to 70% of the peak level by the time the person is in their forties and to half the peak level by their eighties. With the continuous deepening of the medical research, people find more pharmacological functions of coenzyme Q10. For example, Q10 helps to supply endogenous coenzyme to protect the cardiac muscle, eliminate free radicals, maintain the calcium iron passage, improve the respiration function of mitochondria, and reinforce immunity. Ongoing research is expected to show additional health benefits from Q10 supplementation.