Energy Stimulant Pre-Workout. Physician Formulated. Multi-Strength Fast Acting Stimulant. Maximum Energy. Intense Focus. Amplified Endurance. Explosive Power. Zero Crash/ Zero Sugar. E.S.P. from Metabolic Nutrition is a multi-strength stimulating Pre-Workout designed to deliver high-intensity energy unlike any other supplement in the marketplace. Unlike other Pre-workouts that are one dose for all users...E.S.P. is formulated to offer desired energy for low stimulant users, as well as, for high-stimulant users. Additionally, while competing products suffer from short lived or erratic energy levels with questionable taste...E.S.P. Pre-Workout delivers consistent super stimulated energy for 4+ hours with a flavor profile that will having you craving it before every workout. As with all Metabolic Nutrition products, E.S.P. Pre-Workout is physician formulated and tested using only the highest quality ingredients that have passed our vigorous high standard tests.