This product is produced with no animal derived raw products. All processing and handling employs animal free equipment and animal free protocols. Fibroblast Growth Factor 21 (FGF-21) is an endocrine hormone that regulates energy homeostasis and exerts cardioprotective functions during heart injury. FGF-21 is expressed in the liver, pancreas, heart, and adipose tissues. FGF-21 signaling is activated through the FGF receptor FGFR1c and ?-Klotho co-receptor. FGF-21 is an important regulator of glucose uptake and reduces cell apoptosis under stress conditions.