Coenzyme Q10 is an essential bio-nutrient that is made naturally in the human body. It is a necessary co-factor in the process of cellular energy production. It also functions as a lipid-soluble antioxidant protecting our cells against oxidative damage (oxidative damage = damage caused by free radicals that harm cell membranes and cell DNA and proteins and fats in the blood).
Unfortunately, as we pass through our 20s and move into our 30s and 40s and head towards senior citizen status, our cells produce less of this essential substance with increasing age [Kalén]. We know this.