Stim-Free Pump is a synergistic mix of pharmaceutical grade active ingredients which are scientifically proven to maximize muscular pump, promote endurance, improve high intensity output, build lean muscle, increase circulation & hydration, while decreasing fatigue, pain & free radicals damage....without the use of stimulants or caffeine. Stim-Free Pump provides the highest class leading dosages for each ingredients, providing better absorption and utilization, thus providing faster and easier results as compared to lesser dosed ingredient products. Metabolic Nutrition provides a pharmaceutical grade, class leading 10 grams of the purest pharmaceutical grade ingredients, specifically developed for individuals who want to maximize their health & wellness....as well as, athletic performance.