CoQH-CF? (ubiquinol) is a reduced form of coenzyme Q10, and is the actual antioxidant form of coenzyme Q10. It has a high degree of bioavailability. A unique softgel delivery system protects the content from oxygen exposure and provides an efficient way to maintain adequate ubiquinol levels in those whose ability to produce or convert ubiquinol has been hindered by oxidative stress or disease.*