C4 Extreme

The most explosive pre-workout intensifier in supplement history.*

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C4 Extreme


Harnessing unmatched NO3 technology and premium ingredients such as Creatine Nitrate, C4 Extreme is our advanced pre-workout supplement, possessing the power to ignite your mind, muscles, and workout regimen, workout after workout after workout.*

What is NO3? NO3 is Nitrate, an advanced compound that promotes unbelievable muscle pumps and amplifies the power of C4 Extreme.* Cellucor is utilizing a unique compound where NO3 is bonded to Creatine to form Creatine Nitrate.*

C4 Extreme is formulated with key ingredients that will provide more energy to help you get that extra rep, and complete that last set. More reps and more sets are tied to improved strength and endurance.*

C4 Extreme has received the highest honors in the supplement industry, including Pre-Workout Supplement of the Year and Best Product Innovation from the top retailers in the world, including and GNC. 


  • Amplified Energy* 
  • Intense Focus*
  • Unbelievable Muscle Pumps*
  • Mouthwatering Flavors
  • Award Winning Formula


C4 Extreme features the best and largest flavor assortment in pre-workout history. Fan favorites such as Icy Blue Razz, Watermelon and Green Apple highlight the ever growing family of C4 Flavors. Because it’s almost impossible to pick just one, try all of our unique flavors!


I need energy. My workouts are good, sure, but sometimes I’m tired. Sometimes the fear of a mediocre workout keeps me on the couch. Do they make something for this? I hit the supplement store in search. One shiny chrome bottle stands out--it reads, Cellucor C4 Extreme. This pre-workout is unlike anything I’ve seen--no proprietary blends and it’s a reasonable price. I’m sold.

I’m still tired but now I’m excited to see what this supplement can do. I hustle home, change, and pop open my C4. I scoop it in and I’m shocked at how easily it mixes—I hardly had to stir! The flavor? It's unbelievable! Like a pro, I pound the rest in under 10 seconds and head to the gym. A warming sensation radiates through my body--C4 Extreme is no joke. I am ready to crush.

Today is chest day. I’m giggling as I warm up—the bar feels like a toy and I’m scared I’ll throw it through the ceiling. I’ve never felt so confident, so strong. I’ve never been so focused. Did I say I was tired today? I don’t even remember. I explode through the first set and I’m shocked as I just set a personal record with ease. I want more. 

Before I know it, two hours have passed. My training partner gives me an “I’m tired” look, but I talk him into a brutal burn out set. When I’m done, I stand up and look in the mirror. I’m more vascular than a magazine ad, more pumped than I’ve ever seen. My workout partner now begs for an end to this brutal session and this time I oblige. As we head out, I suddenly hear my training partner clear his throat. “I’m trying C4 Extreme tomorrow,” he says, quietly. I grin, thinking of all I just accomplished, and decide to simply state the obvious; “I know.”

What is the best way to take C4 Extreme?

DO NOT EXCEED RECOMMENDED DAILY INTAKE. USE ONLY AS DIRECTED. Directed Use on Training Days: To determine tolerance, begin by taking one serving (1 scoop) mixed with (4-6 oz.) of water 20-30 minutes before training. After personal tolerance has been assessed, take one to two servings (1-2 scoops) 20-30 minutes before training begins. Add (4-6 oz.) of water for each serving. During your workout, it is recommended that you drink plenty of water.

Can I take C4 Extreme with other Cellucor products?

C4 can be taken with P6 Extreme for an explosive pre-workout testosterone support stack.* C4 Extreme and NO3 can be mixed for a high-energy pre-workout stack with explosive pumps.* C4 also stacks well with any of Cellucor’s non-stimulant weight loss options.

I am currently on prescription medication, can I take C4 Extreme?

If you are currently taking prescription or over-the-counter medication, please consult a licensed, qualified healthcare professional prior to using any Cellucor product. Product labels and supplement facts are available on our website for your physician’s review.

I am a drug-tested athlete, can I take C4 Extreme?

Although our products contain only safe legal dietary ingredients, some of these ingredients may be prohibited by individual sports organizations. Due to the unique restrictions of some amateur and professional sports organizations, obtain approval and/or authorization from the appropriate governing body before using this product.

Great focus and pumps! Amazing flavor and mixability! review by Zach S

After using many different PWO, this is definitely my favorite. I have been using it off/on for a little over a year now. It gives me great focus and pumps in the gym. C4 mixes really well and the watermelon and fruit punch tastes amazing.

posted on 10/29/13

The best pre-workout I've tried yet! review by Amy R.

I was going to give up on taking a pre-workout altogether because I couldn't find one that didn't give me that sick caffeine feeling.. or a flavor that didn't make me nauseas. I feel like I've struck gold with Cellucor C4 Extreme (watermelon)! No jittery shakiness that most other pre-workouts have, and it actually tastes delicious. I can't wait to try another flavor!

posted on 10/29/13

My favorite pre-workout by far! review by Bryce S.

Take this before my hard gym days and it gets a great pump going, really helps power through heavy sets. Would really recommend green apple and strawberry margarita flavors.

posted on 10/29/13

An awesome product. review by Ruben M.

The best pre-workout I have had no joke. I felt the pump from the first scoop. There is skin tingling but you get used to it. Great focus in the gym. Tastes exactly as it says. Delicious & mixable.

posted on 10/29/13

Unbelievable energy and unlimited focus. review by Joshua H.

I work out daily, many times I'm in the gym twice a day and running 3 miles a day as I prepare for the military. First off let me just say I have never been a huge fan of pre-workouts most don't do much for me except make me jittery. I took a Scoop and a half of this product for the first time today and it was unbelievable I walked into the gym feeling like I was going to lift the roof off the foundation. I went in the gym to do a quick arms workout and left 2 hours later, it felt like my energy had no limit and my focus was unbreakable. Not to mention I finished the bicep workout with 115 chin ups.. Great product I highly recommend!

posted on 10/30/13

Unbelieveably Powerful! review by Caleb T .

This stuff is the real deal. If you are looking for the ultimate preworkout supplement that will build you muscle and give you energy c4 extreme is the only way to go. Ive been using it for about six months now working out daily and my body has completely transformed with bigger and more toned muscles. Love this stuff!

posted on 02/23/14

The hype is true! review by Dro619

One of the best pre-workouts on the market! No doubt about it. After trying several of the hyped up pre-workouts on the market now, I can truly say this is one the best out there. Excellent quality that you get from any of Cellucor's products and mixability bar none with its competitors. If you want an excellent product with excellent flavor this is it! Search no more!!!

posted on 03/03/14

amazing product review by E.L Hewlett

This product has revolutionized the way that I work out and train. I tried the product around seven months ago and the amount of energy and focus that the product gave me has been unmatched by any other product. I take the cellucor creatine and BCAAs as well with this product and I really believe and trust in this brand. I would recommend this product to anyone.

posted on 02/05/14

Simply one of the best! review by Ptoku

While back when a friend of mine told me about C4 i honestly was skeptical. After looking into it i tried it. I love this preworkout. First it tastes super, probably best tasting preworkout ever ( i love watermelon or green apple its like sippin on a jolly rancher). second i love the tingly effect that pumps me with a huge load of energy. Third is that i dont crash while doing a workout.

posted on 01/28/14

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Supplement Facts

Serving Size: 1 Scoop (5.7g)
Servings Per Container: 30

  • APS
  • % DV**
    • Calories
    • 5
    • Total Carbohydrate
    • 1g
    • <1%**
    • Vitamin C
    • 250mg
    • 417%
    • Calcium
    • 28mg
    • 3%
    • Niacin (as Niaci...
    • 30mg
    • 150%
    • Folic Acid
    • 250mcg
    • 62%
    • Vitamin B12
    • 35mcg
    • 588%
    • Beta Alanine
    • 1500mg
    • Creatine Nitrate
    • 1000mg
    • Arginine AKG
    • 1000mg
    • Explosive Energy...
    • 741mg
    • Vitamin C (As As...
    • N Acetyl-L-Tyrosine
    • Caffeine Anhydrous
    • (135mg)
    • Mucuna Pruriens ...
    • Bitter Orange (C...
    • Niacinamide
    • Folate (As Folic...
    • Vitamin B12 (As ...
    • Pyridoxal 5-Phos...

** Percent Daily Values (% DV) are based on a 2,000 calorie diet. T Daily Value not established

Other Ingredients: Natural & Artificial Flavors, Citric Acid, Malic Acid, Silicon Dioxide, Calcium Silicate, Sucralose, Acesulfame Potassium (Ace-K), FD&C Red Lake #40 Advantra Z® Is A Registered Trademark Of Nutratech In. under U.S. patents 6,224,873; 6,316,499; 6,340,481; 6,340,482

From the athlete

Craig Capurso

Fitness Pro and businessman, Craig Capurso attacks any challenge like a bull...Head first.

Learn More about Craig »


DO NOT EXCEED RECOMMENDED DAILY INTAKE. USE ONLY AS DIRECTED. Directed Use On Training Days: To determine tolerance, begin by taking one serving (1 scoop) mixed with (4 - 6 oz.) of water 20 - 30 minutes before training. After personal tolerance has been assessed, take one to two servings (1 - 2 scoops) 20 - 30 minutes before training begins. Add (4 - 6 oz.) of water for each serving. During your workout, it is recommended that you drink plenty of water. Moisture and humidity can cause clumping and discoloration. STORE IN A COOL DRY PLACE.

IMPORTANT DISCLOSURE: This product may contain legal dietary ingredients that are prohibited by individual sports organizations. Due to the unique restrictions of some amateur and professional sports organizations, obtain approval and/or authorization before beginning use of this product.


Do not take if your are currently taking nitrates for chest pain or if you are taking medication used to treat erectile dysfunction such as PDE-5 inhibitors. This product is only intended to be consumed by healthy adults 18 years of age or older. Before using this product consult with your physician if you are pregnant or nursing, or if you are using any prescription or over-the-counter medication or if you have any pre-existing medical condition including but not limited to: high or low blood pressure, cardiac arrhythmia, stroke, heart, liver, kidney or thyroid disease, psychiatric or epileptic disorders, diabetes, recurrent headaches, enlarged prostate, difficulty urinating, glaucoma, or if you are taking MAOI (Monoamine Oxidase Inhibitor), antidepressants, aspirin, nonsteroidal anti-inflammatory drugs or products containing phenylephrine, ephedrine, pseudoephedrine, or any other medication. Contains caffeine. Do not use in combination synephrine, caffeine, or any stimulants from other sources whatsoever including but not limited to, coffee, tea, soda and other dietary supplements or medications containing phenylephrine or caffeine. Discontinue use and consult your healthcare professional two weeks prior to surgery, or if you experience rapid heartbeat, dizziness, severe headache, shortness of breath or any other adverse reaction to this product. Do not combine with alcohol. Do not exceed recommended servings. Do not use if safety seal is broken or missing. Do not use for more than 8 weeks. KEEP OUT OF REACH OF CHILDREN.

This stacks well with

C4 Extreme stacks well with either of our P6 Black, or P6 Extreme, as well as Alpha Amino and M5 Reloaded. Always follow label instructions and restrictions for stacking products.

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C4 Extreme