BSN Cell Mass contains the latest and most innovative form of creatine ever developed: Creatine-Ethyl-Ester-Malate (or CEM3™), Glutamine AKG, and the powerful sugar free insulinogenic (Cinnulin-PF). Post-workout creatine supplementation is essential for replacing creatine stores lost during training, speeding recovery, volumizing the muscle cell, increasing muscle density and hardness, and activating a powerful anabolic growth phase.