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⚡ Elevate your grind, fuel your mind, own your day!
C4 Smart Energy Drink delivers 200mg of naturally sourced caffeine and brain-boosting Cognizin® Citicoline in a zero sugar, zero calorie formula. Available in six bold flavors, this 12-pack energizes professionals and go-getters alike to power through work, workouts, and play with clean, focused energy.






















| Asin | B0B57VD8BW |
| Best Sellers Rank | #34 in Energy Drinks |
| Item Model Number | 7070014 |
| Manufacturer | Nutrabolt |
| Package Dimensions | 9.87 x 6.97 x 6.18 inches; 9.04 pounds |
| Upc | 842595125108 |
User
GOOD price!
Loved it - great cost! Very effective, flavor is a bit weird but I could survive. Got the energy I needed and 200mg caffeine.
User
Quality
On time delivery, subscription, pricing and works great for energy!! No crash!
User
Quite tasty
These were delicious
User
Would buy again.
Tastes amazing.
User
Entergy drinks
this is one of the best of these energy drinks; I will keep some of this one in stock!
User
Good
Good
User
Best Healthy Energy Drink.
I feel like this is the “cleanest” energy drink out there. It doesn’t give me a crash like Monster. It uses Splenda as the alternative sugar source. 200 mg of caffeine is more than enough caffeine, even more than Monsters and Red Bull. Most important also, it doesn’t have many carbs, it doesn’t make me feel bloated at all. Also the “Smart Energy” drinks don’t give you that itchy preworkout feeling, because they don’t have beta-alanine.
User
Excellent product
Product arrived on time and in good condition.
User
More like "DUMB ENERGY"
I was taking this for several weeks now to try to improve my focus for studying, and it was doing the total opposite. Whenever i drink this I can't focus or even grasp the most basic concept. It also screwed up my memory and gave me lots of severe headaches and sleep problems.It also tastes horrible compared to diet coke or other diet drinks.
Trustpilot
2 weeks ago
1 month ago