How much caffeine is in C4 Performance Energy Cosmic Rainbow?

C4 Performance Energy Cosmic Rainbow by Cellucor contains 200mg of caffeine per can.

Is C4 Performance Energy Cosmic Rainbow sugar-free?

Yes, C4 Performance Energy Cosmic Rainbow is sugar-free.

How many calories are in C4 Performance Energy Cosmic Rainbow?

C4 Performance Energy Cosmic Rainbow has 10 calories per can.

What is C4 Performance Energy Cosmic Rainbow rated?

C4 Performance Energy Cosmic Rainbow has an average community rating of 4.5 out of 5 from 2 ratings on Energy Drink Ratings.

How does the caffeine in C4 Performance Energy Cosmic Rainbow compare to daily guidelines?

One can (16 fl oz): 200 mg caffeine (about 12.5 mg per fl oz), about half the FDA's 400 mg a day guideline for healthy adults.

Does C4 Performance Energy Cosmic Rainbow have more caffeine than a cup of coffee?

Yes. At 200 mg, C4 Performance Energy Cosmic Rainbow has about as much caffeine as 2 cups of brewed coffee (an 8 oz cup of brewed coffee has about 95 mg, per the USDA).

What sweetens C4 Performance Energy Cosmic Rainbow?

Sweetened with Sucralose and Acesulfame Potassium.

Cellucor

C4 Performance Energy Cosmic Rainbow

Name: C4 Performance Energy Cosmic Rainbow
Brand: Cellucor
Rating: 4.5 (2 reviews)

Availability last checked Oct 12, 2026

Only 2 ratings so far — yours would count for a lot right now.

4.5 (2)

Frequently asked questions

How much caffeine is in C4 Performance Energy Cosmic Rainbow?: C4 Performance Energy Cosmic Rainbow by Cellucor contains 200mg of caffeine per can.
Is C4 Performance Energy Cosmic Rainbow sugar-free?: Yes, C4 Performance Energy Cosmic Rainbow is sugar-free.
How many calories are in C4 Performance Energy Cosmic Rainbow?: C4 Performance Energy Cosmic Rainbow has 10 calories per can.
What is C4 Performance Energy Cosmic Rainbow rated?: C4 Performance Energy Cosmic Rainbow has an average community rating of 4.5 out of 5 from 2 ratings on Energy Drink Ratings.
How does the caffeine in C4 Performance Energy Cosmic Rainbow compare to daily guidelines?: One can (16 fl oz): 200 mg caffeine (about 12.5 mg per fl oz), about half the FDA's 400 mg a day guideline for healthy adults.
Does C4 Performance Energy Cosmic Rainbow have more caffeine than a cup of coffee?: Yes. At 200 mg, C4 Performance Energy Cosmic Rainbow has about as much caffeine as 2 cups of brewed coffee (an 8 oz cup of brewed coffee has about 95 mg, per the USDA).
What sweetens C4 Performance Energy Cosmic Rainbow?: Sweetened with Sucralose and Acesulfame Potassium.