Nature's Harbor Coenzyme Q10 (also known as Co-Q10, Vitamin Q, or ubiquinone) is a naturally occurring compound found in every cell in the body. The body uses Co-Q10 for cell growth and energy production. Adequate levels of Co-Q10 can help to prevent high blood pressure, heart attack, angina, immune depression, periodontal disease, energy loss, and weight gain. Co-Q10 is also a powerful antioxidant protecting cells from the damaging effects of free radicals. The body's ability to produce Coenzyme Q10 decreases with age.