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Science
Sports Nutrition
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/ Bundles / Brain-Body Bundle

Elevate Your Physical & Mental Performance

Brain + Body Bundle

With Our Trial Offer

24 for $24

Free Shipping
Cancel Any Time
Satisfaction Guaranteed

Brain Fuel

Choose 1

Freedom Ice

Electric Sour

Cotton Candy

Peach Mango Nectar

Body Fuel

Choose 1

Sour Batch Bros

Cotton Candy

Midnight Cherry

Orange Slice

Purple Frost

Strawberry Watermelon Ice

Frozen Bombsicle

Twisted Limeade

Tropical Blast

Cherry Limeade

After your trial pack, you get

24 cans every month

Just enough to dominate your fitness goals.
Never pay full price

Get 20% off the life of your subscription. Plus Free Shipping.
Take Control

Reschedule, Increase, or Swap Cans. You have control.

0 sugar

0 calories

0 carbs

Brain Fuel

C4 Smart Energy

C4 Smart Energy sharpens your attention, boosting memory, focus and performance.

Body Fuel

C4 Energy

C4 Energy promotes endurance, hydration and heightened physical performance.

Answers for all your questions

Can i cancel my subscription anytime?

Yes, you can cancel, pause, change flavors, or increase the number of cans in your subscription at any time. Our website is open 24/7.

Do I have to subscribe to monthly delivery?

Our default delivery setting is every 4 weeks, but you can easily change your delivery interval to 2, 4, 6, or even 8 weeks within your account. You can also increase your quantity if you want more C4.

Can I speak with a live representative?

Of course! Call us directly at (866) 927-9686. If you prefer to connect digitally, you can email support@c4energy.myshopify.com or use our Live Chat feature on C4energy.com.

What if I am not happy with my trial 24 cans?

No problem, we’ll give you a complete refund! We promise a full 100% money back guarantee if you don’t love C4. That’s how much we believe in our product.

What makes C4 such a great energy drink?

C4 Energy and Smart Energy is made with zero sugar, zero calories, and zero carbohydrates. It's also free from artificial colors or dyes. In addition, C4 contains a combination of clinically studied functional ingredients like CarnoSyn® Beta-Alanine, BetaPower® Betaine, caffeine, and citrulline to help you dominate life.

Still have questions?

Contact us

The taste and effects are way better than other energy drinks out there.”

AC - Verified Reviewer

I get a very clean, focused energy after drinking this. No jitters, no crash.”

Logan M - Verified Reviewer

These outperform other products and actually give me a pick-me-up.”

Ethan R - Verified Reviewer

Tasty, revitalizing, and somehow someway there are zero calories and sugar.”

Todd K. - Verified Reviewer

This has saved me on days where I need to turn it up to an 11.”

Natalie T. - Verified Reviewer

If it's for life or for the gym, this is a great pick me up!”

Chuck C. - Verified Reviewer

Serves as a mental cue that it's time to get to work.”

Bowen - Verified Reviewer

I use this to focus and get past my slump at work – it has made a huge difference.”

Amazon Reviewer

Man... the freedom ice is my absolute FAVORITE beverage of all time.”

DK - Verified Reviewer

What's more to need? Physical energy; mental energy. Such a great all-around beverage!”

Cee - Verified Reviewer

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