Precision engineered creatine ethyl ester creatine ketoglutarate is a unique creatine formula providing fantastic value for money as well as excellent absorption effectiveness and bioavailability creatine ethyl ester is the most absorbable form of creatine available the ethyl ester has a delivery system that bypasses the need for creatine transporters and is delivered directly into the muscle cells once the creatine ethyl ester enters the muscle the ethyl ester is simply removed leaving