Coenzyme Q10, also known as CoQ10 or ubiquinone, is a vitamin-like, fat-soluble substance that exists naturally in almost every cell of the human body.
It has two key roles:
Supports energy production
It helps cells convert food into ATP (cellular energy), especially in high-energy organs like the heart, liver, and muscles.
Acts as an antioxidant
It protects cells from damage caused by free radicals, helping maintain cell health and slow oxidative stress.
Common uses as a supplement
Simple short answer
Coenzyme Q10 is a natural substance in the body that produces cellular energy and protects cells from oxidation, widely used for heart health and energy support.