Co Q-10 is a unique and powerful nutrient currently used by millions of people and very widely recommended by doctors, usually to support various aspects of cardiovascular health. As an antioxidant similar to vitamin E, Co Q-10 protects cholesterol from oxidation which greatly increases the risks it poses to cardiovascular health. Co Q-10 has also been studied for a wide-range of other conditions such as Parkinson's disease, for which high doses (~1200 mg per day) were used.There is no RDA established for Co Q-10 since the body can manufacture it, but for many people, especially those taking statin drugs for high cholesterol, Co Q-10 is an essential nutrient. This is because statin drugs block the body's production of Co Q-10. And even for those not taking statin drugs, production of Co Q-10 declines as we age.Since Co Q-10 is so safe and supports so many vital processes, many experts are recommending higher doses than in years past. NOW Foods 400 mg Co Q-10 is one of the highest-potency Co Q-10 products on the market, making this the best choice for those using high doses. Absorption and utilization are enhanced by the fact that this product is in an oil base, and includes the co-factors vitamin E and lecithin.