If you want alertness without jitters, try BPI’s 1.M.R Vortex.
This contains yohimbe, a natural adrenaline booster that, according to a Japanese study, increases arousal without raising anxiety, as measured by both subjects’ self-reporting and an analysis of their brain chemistry. Plus, BPI promises, with its matrix of other plant-sourced ingredients and niacin—which plays a key role in energy production—Vortex is a good pre-workout choice for those who feel other products have worn off on them.
$40 for 50 servings, bpisports.net.
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