Cellucor C4 Original Pre-Workout. It contains effective, proven substances to support performance, concentration and strength. Pre-Workout 390/780/1170 grams. Contents : Net Weight - 390 grams. Product contains In a daily serving %RWS Beta-Alanine CarnoSyn 1600mg Micronised Creatine Monohydrate 1500mg Arginine Acetoglutarate 1000mg N-Acetyl-L-Tyrosine 200mg Anhydrous Caffeine 150mg Vitamin C 37.5mg 46.88% Vitamin B6 0.5mg 35.71% Folic Acid 100μg 50% Vitamin B12 1.25μg 50%.