staunch pre zero-stim - 30 servings, pina koala pre-workout powder, no stimulates. with betapure, l-citrulline, vitamin b12 and more staunch just like yin and yang, for every koala freak there is a kanga sage. and while the koala freak uses crazy stimulants to put fire into their blood before the gym, the kanga sage summons their energy from within, and only uses staunch pre zero-stim to add pump and endurance to their naturally all-powerful and motivated mindset. if you are sensitive to caffeine or other stimulants, staunch pre zero-stim is the perfect way to get that pump before your workout without being pumped full of stimulants! you get the full effects of the best pre-workout on the market minus the stimulants. in the meanwhile, it still contains the best tasting flavors that staunch provides!