START CONDITIONING WITH GAME-CHANGING ENERGY: Every scoop of GNC Pro Performance Pre-Workout delivers 150mg of natural caffeine to fuel energy and extended endurance—plus L-theanine to help provide advanced focus in a synergistic combination.
FIGHT FATIGUE AND ENHANCE POWER: GNC Pro Performance Pre-Workout’s CarnoSyn beta-alanine is clinically shown to increase a key muscle fatigue controlling factor, while its BetaPower betaine anhydrous is shown to enhance athletic performance.
GET PUMPED AND STAY PRIMED: Intensify your muscle pump during workouts with 3g of L-citrulline per serving—and replace key minerals to stay primed for performance with an 805mg blend of electrolytes.
BANNED SUBSTANCE TESTED: You can trust that GNC Pro Performance Pre-Workout tastes great, has a great value per serving, and offers everything you’re looking for in a pre-workout—without any proprietary blends or banned substances.