It contains the reduced form of CoQ10 (coenzyme Q10), which has been shown in scientific studies to be a highly bioavailable and antioxidant-active form of CoQ10. The addition of d-limonene to this product improves its natural solubility, which enhances intestinal absorption. Coenzyme Q10 is present in almost all cells, where it is essential for mitochondrial energy production. The highest concentrations of CoQ10 are found in the heart, where the continuous availability of chemical energy is imperative. In addition to its benefits for heart function through energy production, CoQ10 also acts as a powerful fat-soluble antioxidant, providing protection against damage to vascular structure, as well as other tissues, including the brain and neurons. Because ubiquinol makes the heart muscle work more efficiently and consistently, and is also useful for maintaining normal blood pressure, it is recommended for the treatment of cardiovascular problems, including congestive heart failure. It is also used to increase energy levels. Current studies indicate that it may also increase longevity. Additionally, Ubiquinol concentrates in nerve tissue and the brain, similar to the high levels of CoQH-CF found in the heart. Research shows that it is useful in the treatment of certain chronic degenerative neurological conditions, including Parkinsons disease, which is the most studied. Ingredients per softgel: Ubiquinol (Kaneka QH) (Reduced form of CoQ10) 100 mg Use: 1 capsule daily with a meal