Introducing the C4 Original Pre-Workout Shots from the #1 Global Pre-Workout Brand* Cellucor. The C4 Original Pre-Workout Shots are pocket rockets with 1.6g CarnoSyn® Beta Alanine, 1g Arginine, 200mg L-Tyrosine and 150mg Caffeine packed into a small 60ml serving. Take 1 serving (60ml) 15-30 minutes before training. Shake well before use. Nutritional Information Per 60ml Niacin 2.4mg (15%RI) Vitamin B6 0.5mg (36%RI) Folic Acid 100ug (50%RI) Vitamin B12 1.3ug (52%RI) CarnoSyn® Beta Alanine 1600mg L-Arginine 1000mg N-Acetyl L-Tyrosine 200mg Caffeine 150mg