The most common coenzyme in human mitochondria is CoQ10 The level of CoQ 10 The level of CoQ10 is the highest in organs with high rates of metabolism such as the heart, kidney, and liver CoQ10 is essential for the health of virtually all human tissues and organs Coenzyme Q10 is one of the most significant lipid antioxidants, which prevents the generation of free radicals and modifications of proteins, lipids and DNA Antioxidants such as CoQ10, can neutralize free radicals and may reduce or even help prevent some of the damage they cause CoQ10 improves energy augments the immune system, and act as an antioxidant