Bodybuilding.com Signature Pre Workout

Pre-Workout includes proven ingredients that promote intense pump and growth while battling fatigue, so you can work out harder and longer. With 200mg of caffeine, this is perfect for high volume lifts, cross-fit, cardio or intense strength training. Taking a mega dose of stimulants isn't always the best before your training so we focused this formulation on high quality, proven, efficacious ingredients to help you hit your training goals and make every workout count. Using this formula before training will help provide energy and get you focused to get the most from your workout.* This powerhouse formula drives both results and a great value and is loaded with proven ingredients to help power your workouts: *L-CITRULLINE* One of the keys to a great workout is a great pump. The amino acid L-Citrulline contributes to your body's production of nitric oxide, a vasodilator. When your blood vessels are dilated, your body is more effectively able to circulate oxygen and other performance-maximizing nutrients to working muscles.* *L-LEUCINE* The amino acid L-Leucine is known as a trigger for muscle protein synthesis (aka muscle growth) and a fuel source for your hard-lifting muscles. Your body cannot make L-Leucine, so it must come from supplements or food.* *CARNOSYN® BETA-ALANINE* Beta-alanine acts as a buffer between fatigue-promoting lactic acid and your muscles by producing carnosine, which keeps lactic acid in check during intense workouts. That means better muscular endurance, more energy for high-intensity or explosive movements, and better overall workout performance.* *CAFFEINE* Caffeine is one of the most common pre-workout ingredients because it works. Supplementing with caffeine has been shown to increase focus and improve workout performance, allowing you to dig in and get the work done.*