CoQ-Clear® 100 Ubiquinol is crystal-free and contains the reduced form of CoQ10, ubiquinol. Ubiquinol is the active form of CoQ10 and may be better absorbed than ubiquinone in some individuals. NuMedica’s CoQ-Clear® 100 Ubiquinol contains refreshing, natural food grade citrus oil for improved solubility and enhanced absorption in the intestine.