How much caffeine is in C4 pre-workout?
How much caffeine is in C4 pre-workout? C4 Sport supports explosive energy, performance, and endurance for workouts of all stripes and trainees of all types. The sugar-free, NSF Certified for Sport® formula is trusted by competitive athletes, contains 135mg caffeine, and forms the base of our 1-2-3 Sport Series System. C4 Pre-Workout is a workout […]
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