- Introducing the all-new Muscles Nutrition Big Rock PreWorkout. Created to unleash the Xtreme fire in you
- MN Pre-Workout is a great Pre-Workout formula that prepares your body for astonishing workouts
- This power-packed formula contains 300mg Caffeine + 200mg Theanine for instant and sustained release of energy to keep you focused and active
- It contains 3850mg Beta Alanine for Xtreme endurance
- It also contains 1500mg L-Citrulline to enhance blood flow in nerves & boost pump.
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