The extreme pre-workout performance for men & women. Built to unlock next level energy and results, C4 Extreme was formulated with clean, clear, and evolved formulas for explosive pre-workout performance. EXTREME ENERGY — Take your training to the next level with explosive C4 Energy from 200mg of caffeine. EXTREME ENDURANCE — Fuel muscular endurance and fight fatigue with 2g of the clinically studied CarnoSyn Beta-Alanine. EXTREME PREFORMANCE — Increase strength and performance with Creatine Nitrate (NO3-T) and NitraMax (NO3-C) technology.* INCREDIBLE FLAVORS — Legendary zero sugar C4 taste in every scoop. With billions of servings sold, C4 has been setting the standard in flavor for over a decade.