C4 Smart Energy®

2 reviews
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C4 Smart Energy™ Natural Energy

Powered by natural caffeine from green coffee beans, 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.

Smart Energy is proudly made with natural flavors, no artificial colors or dyes, and contains zero calories, sugar, or carbs.

  • Boosts Metabolism
  • Supports Fat Loss
  • Sharpens Mental Focus
  • Zero Sugar

Break the rules, change the game, and outsmart the competition. Tap into the limitless power of your mind.


  • 200MG Natural Caffeine - Derived from green coffee beans.
  • Cognizin® ­– Clinically studied ingredient that supports mental focus, attention, and recall.
  • N-Acetyl Tyrosine – Soluble form of L-Tyrosine that supports noradrenaline and dopamine, in turn, supporting mental health during stressful activities.
  • Key Nutrients – Potassium, Niacin, and Vitamin B12.
Customer Reviews
5.0 Based on 2 Reviews
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Filter Reviews:
Tony L.
So Good

The peach mango nectar flavor is delicious and gives a nice boost of energy. Medium carbonation with a ton of delicious peach and mango flavors. A must buy.

Chris E.
Best energy drink!

The caffeine content is where it needs to be and the focus you get from this is next level. Will buy again!

Nutrition Info

Warning Concerning California Residents: This product may contain chemicals known to the State of California to cause cancer and birth defects or reproductive harm.