Here's a great price on a popular potency of NOW Foods pharmaceutical-grade Co Q-10. Co Q-10, or co-enzyme Q-10, is an increasingly important nutrient as we age because our body's ability to synthesize Co Q-10 decreases as we get older. Co Q-10 supports overall health, but since it's so important to heart health, and since heart health issues are so prevalent (hypertension, high cholesterol, atherosclerosis, heart failure) Co Q-10 is most often used to support cardiovascular health, often on the advice of a physician, and often in conjunction with statin drugs used to treat high cholesterol. For best absorption, take NOW Co Q-10 with food, or other oil-based supplements like fish oil.