Definition Stack is a combination of five potent formulas to help you gain bodybuilding objectives by cutting down fat and building muscle mass. As you burn fat faster, you can unleash your hidden muscle mass and prove to the world that you are unbeatable. It is a combination of five supplements – SBULK, WINCUT, TBULK, CCUT, and ACUT. Each of these supplements has a role to play in helping you earn a ripped-off physique.