NOW Ubiquinol contains the reduced form of CoQ10 (Coenzyme Q10) which studies suggest to be a highly bioavailable and active antioxidant form of CoQ10.* The addition of MCT Oil (medium chain triglycerides) to this product naturally improves its solubility, which further supports intestinal absorption, and thereby provides overall biological value.* Coenzyme Q10 is present in almost all cells, where it is necessary for mitochondrial energy production. The body´s highest concentrations of CoQ10 are found in the heart, where constant chemical energy availability is imperative. CoQ10 also functions as a powerful fat soluble antioxidant, providing protection against free radical attack for vascular structures, as well as for other tissues, including the brain and neurons.*