You have no items in your shopping cart
Built for the innovators, the disruptors, the hustlers and go-getters. Unleash your inner Einstein and tap into the limitless power of your mind.
Powered by InnovaTea® Naturally Derived Caffeine (from Tea), brain-boosting Cognizin®, and the additional support of N-Acetyl L-Tyrosine, C4 Smart Energy delivers energy, focus, and mental performance to help you conquer any task—from work to play, gaming to studying, partying to planning. C4 Smart Energy is proudly made with natural flavors, no artificial colors or dyes, and contains zero calories, sugar, or carbs.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Third-party tested, and athlete approved, C4 Energy is proudly NSF Certified for Sport®^. This globally recognized certification is our investment that helps athletes of all levels to enjoy our products with confidence.
CAUTION: Do not consume this product if you are pregnant or nursing. Store in a cool, dry place. Do not freeze. KEEP OUT OF REACH OF CHILDREN