Coenzyme Q10 is a natural substance which itself is made by our body. (Liver)
When it was discovered in 1957, scientists called it ubiquinone, because it was ubiqitair (omnipresent) in nature. It is found in fact in all living beings.
Q10 is a co-enzyme which is similar to vitamin. Sometimes your body makes Q10, but we usually get it from food. Good sources for Q10 are: organ meats, sardines, mackerel and peanuts. There have been many studies devoted to Q10. It has been found that Q10 is not toxic and that it has no side effects.