Coenzyme Q10, or CoQ10, is an antioxidant that is involved in energy production. It’s not a vitamin because your body can produce it, but it is in many foods and it acts like some vitamins. If you’re wondering about the health benefits of CoQ10, keep reading. There may be many!* And also keep reading to find out side effects of CoQ10 and why a CoQ10 Vitamin Patch may be the right choice for you, if your doctor agrees.