C4 Smart Energy RTD
C4 SUPERBRAIN™ PERFORMANCE FUEL
Break the rules, change the game, and outsmart the competition. Tap into the limitless power of your mind.
UNLEASH YOUR INNER EINSTEIN.
Powered by InnovaTea® Natural Caffeine (from Tea), brain-boosting Cognizin® Citicoline, 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.
Smart Energy is proudly made with natural flavors, no artificial colors or dyes, and contains zero calories, sugar, or carbs.
200mg InnovaTea® Natural Caffeine
Made from green tea, this naturally derived caffeine delivers anytime energy and alertness
250mg Cognizin® Citicoline
This patented brain-boosting citicoline helps support mental focus, attention, and recall
200mg N-Acetyl L-Tyrosine
Helps the body produce key neurotransmitters like dopamine to support mood and cognitive health