Coenzyme Q10 is essential to human life. It plays a role in the electron transport chain, one of the body's energy-producing cycles that converts food into energy. Research indicates that supplementation with this nutrient may support normal heart function and provide antioxidant protection. Source Naturals 200 mg CoQ10 is offered in vegetarian capsules. Recommend : 1 to 2 capsules daily, preferably with a meal. Cautions : If you are pregnant or breastfeeding, consult your health care professional before using this product. Ingredients : Coenzyme Q10 (ubiquinone) 150 mg. Serving Size : 2 capsules. Additional Ingredients : gelatin (capsule) and microcrystalline cellulose.