Cellucor COR-Performance CreatineCellucor"s COR-Performance Creatine is unlike any Creatine product in its class. Featuring clinically dosed formulas and unmatched flavor systems, the COR-PerformanceTM Series is designed to satisfy every customer: great formulas, great flavors and great prices. The entire line is Informed-Choice certified and sports a fully disclosed TruFactsTM label.