ALL THE OUTPUT. NONE OF THE STIMULI. A stimulant-free pre-workout formula designed to maximize vasodilation, power, and muscular strength. Perfect for those sensitive to stimulants, evening lifters, and those taking a caffeine break.† Supported by science, this product has a stimulant-free, 100% transparent label, is banned-substance free, and all safe ingredients are recognized as GRAS (Generally Regarded as Safe).