C4 Ultimate

C4 Ultimate

The Ultimate Pre-Workout Experience
Fully-Loaded Formula in Single Scoop Dose
9.3  out of 10  (153 Reviews)
2 Sizes
20 Servings
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4 Flavors
Cherry Limeade
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Price: $39.99  ($2.00 / Serving)
Flavor Rating: 9.1

Product Overview

Cellucor C4 Ultimate Pre-Workout bottle image. Cellucor C4 Ultimate Pre-Workout bottle image.



C4 Ultimate

Ultimate isn’t just a code of conduct… It’s the pursuit to kick ass and take names in the gym. Your crushing hunger to reach your new PR is the very reason why we’ve spent the last few years engineering the most hard-hitting, intense, and focused pre-workout on the market–one that matches your obsession of being better than you were yesterday.*

C4 Ultimate is the most powerful C4 we’ve ever created. It’s not for the weak. It’s not for the weekend warrior. This is for those that don’t have limits in the gym. Those that aren’t afraid to work, sweat, and bleed for their next best. It’s dosed to the brim with the powerful ingredients that your body begs for. You will feel the explosive energy run through your veins as you prep for battle in the gym.*

This maxed-out formula also packs a heavy punch of nootropics, mood enhancers, pump amplifiers and endurance boosters to push you to your ultimate limit. C4 Ultimate will challenge you for one more rep, one more set, and to pick up that heavy dumbbell you’ve been thinking about for weeks.*

Ready to see what you're made of?

Are you ultimate?

prove it.
The Ultimate



Citrulline Malate




Carnosyn Beta Alanine


Super Compound Creatine Nitrate


Betaine Anhydrous


Caffeine for Explosive Energy*


Powerful blend of nootropics, including: zembrin®, alphasize® (alpha gpc), & huperzine a

Ratings & Reviews

Overall Rating
153 Ratings
Verified Buyer Rating
32 Ratings
Average Flavor Rating
5 Flavors
Top Rated Flavor
Icy Blue Razz
By clicking the button above, you agree to entering the Bodybuilding.com Reviews section. Products in the Store are not intended to diagnose, treat, cure, or prevent any disease.
Verified Buyer
  • 8 Icy Blue Raspberry

A fantastic pre workout, had very good focus and it really helped push me through a heavy chest workout, however I am not a fan of 300mg caffeine, I feel this is too much and 200mg would have been fine. Although I get no jitters from this product which I love. You should ensure you're not getting caffeine from other sources on the days you use this product

  • 10 Cherry Limeade
  • 10 Icy Blue Razz
  • 10 Orange Mango
  • 10 Strawberry Watermelon

C4 Flavor: 10/10 C4 Original- Strawberry Margarita, Icy Blue Razz, Cherry Limeade, Orange Burst, Green Apple, Pink Lemonade, Watermelon, Fruit Punch Carbonated- Frozen Bombsicle, Strawberry Watermelon Ice, Twisted Limeade, Tropical Blast, Arctic Snow Cone Ripped- Icy Blue Razz, Berry Brainiacs, Fruity Rainbow Blast, Cherry Limeade, Raspberry Lemonade, Tropical Punch, Fruit Punch On The Go- Icy Blue Razz, Berry Lemonade, Arctic Snow Cone, Orange, Berry Blast, Cherry Limeade, Orange Burst, Pink Lemonade, Watermelon, Fruit Punch Ultimate- Blue Raspberry, Strawberry Watermelon, Apple Berry, Cherry Limeade, Orange Mango, Cotton Candy Extreme Energy- Icy Blue Razz, Strawberry Kiwi, Cherry Limeade, Lemon Drop Sport- Icy Blue Razz, Arctic Snow Cone, Watermelon, Fruit Punch Extra: I have extensive research on Cellucors C4 product line from C4 Original, Carbonated, Ripped, On The Go, Ultimate, Extreme Energy and Sport. C4 flavor testing was superb!!! Flavors are amazing, I used a serving scoop in about 8oz of water mixed with crushed ice. I am a huge fan of Cellucors C4 line and this doesn't fail me too the least. C4 mixes well with products from Cellucor but be careful to read the ingredients because too much isn't good. Mixability: 10/10 - No issues at all, no extra flakes give it a good shake or vortex spin and you're good to go. Overall: First off thank you Cellucor for making another excellent product, C4 products work tremendously. Not even that the flavor is a great starting point as well as it tastes amazing. But we are all here for the gainz and getting the boost necessary and routines in, I give this product a thumbs up!!! More Extras: ATP is a source of energy our body created, the more ATP the more our body can do. I won't be going into complete detail as I have learned all about ATP, energy systems, etc in College however one thing I found great about the C4 is that you won't feel any crash after training/workout. I felt the boost and noticed my training/workout lasted longer than normal. I could've gone even more, and it's hard to find a naturally perfect balance of ingredients in an energy booster, not only does it boost ATP/Energy within the body, the ingredients are a perfect mixture, plus no crash which is what we all need


I love the taste. Not overbearingly sweet, just right. Mixes well. Has plenty of citrulline malate, beta-alinine, betaine, AKG, and Taurine. Enough said!

  • 9 Orange Mango

I really enjoyed this pre-workout. The pumps were great and the energy was strong but smooth. There was no jitteriness and no tolerance issues. My only critique is that the focus could have been stronger; I would like to see this product have more Alpha-GPC.


Helps me push through my day and grueling work with minimal crash. I can outlast both cardio and heavys. I noticed also less resting times between sets. I did get about as much as 300mg caffeine will give which is plenty. Flavoring and color additives Im not a fan of although flavor was slightly more sour than I expected for an apple-berry, kind of a kick too but pretty decent nontheless.

  • 8 Icy Blue Razz

This pre work out do what is suppose to do. I felt some good pumps, and focus. It's pretty strong for me, I recommend taking some amino acids with it so you don't get dizzy. Or just drink a lot of water.

Verified Buyer
  • 9 Strawberry Watermelon

if u like cars wil gonna understand whats i gonna say pre kaged vs c4 Ultimate i can say the pre kaged is like Corvette alots of power make u spell your wheels in your place the c4 ultimate like GTR alots of power but u gonna get fast accelerating without any spell or born your wheels looool c4 ultimate the best pre workout i get

Verified Buyer

Best preworkout so far I've tried a few this gives me insane muscle pumps

Verified Buyer
  • 10 Cherry Limeade

C4 Ultimate is an amazing pre. I had energy for days in the gym however it is definitely not for late afternoon or night workouts as I would be awake for at least 12 hours after taking it. It mixes very well. I will be reordering cherry limeade once ive completed the 40 serving tub. 1 scoop is extremely strong.

  • 10 Orange Mango
  • 8 Strawberry Watermelon

Great pre-workout. I don't take a full scoop. After a week or so, I tried a full scoop and it had me buzzing. 3/4 scoop seems to do the trick for me.

Verified Buyer
  • 10 Icy Blue Razz

Very Explosive, wakes me right up within 15-20 minutes and I'm ready to hit it hard. Seems as though it helps clear my mind and gives great focus. Definitely works the sweat out of me as well. Highly recommended!

Verified Buyer
No written review.
Verified Buyer
  • 8 Icy Blue Razz

I used to use the C4 Ripped and the energy wasn't great; and after using the Ultimate now, and i find that when I do get the energy burst (which doesn't always happen) it really hits and feels fantastic and makes my workouts a better experience and I get more out of them. The energy doesn't affect me as I would like, but overall, this has been the best Preworkout I've used.


Best supplement out of Cellucor's product line.. Hefty dosage of Nitrosigine, Citrulline, and Betaine while having the stimulant right around my tolerance :) An overall excellent PWO for pump, energy, and focus without the inclusion of Yohimbine, and the flavor is spot on!

Verified Buyer
  • 8 Cherry Limeade
  • 7 Strawberry Watermelon

To begin I've tried many pre workouts including the always hyped up Bnox and none of them could work for me in the aspects of energy, endurance, or focus but C4 ultimate is the kinda pre workout you take when you wanna go as hard as you want. As soon as i started tsking it i instantly noticed a huge jump in energy, and the pumps are amazing on this stuff. The flavoring is great too but just too sweet besides the new raspberry one, but the cherry limeade one tastes just like mtn dew code red, but super sweet, otherwise this stuff is great and i highly recommend it, only con to it is if you take it on an empty stomach you're gonna feel absolutely awful, and the price is a bit much, otherwise buy this stuff!

What's in Cellucor C4 Ultimate

Serving Size: 1 Scoop (19g)
Servings Per Container: 20
Amount Per Serving % DV
Calories 5       
Total Carbohydrate 1 g <1%**
Vitamin C (as Ascrobic Acid) 250 mg 417%
Niacin (as Niacinamide) 60 mg 300%
Vitamin B6 (as Pyridoxal-5-Phosphate) 1 mg 50%
Folic Acid 500 mcg 125%
Vitamin B12 (as Methylcobalamin) 70 mcg 1,167%
Calcium (as Calcium Silicate) 45 mg 5%
Citrulline Malate 6g
CarnoSyn® Beta-Alanine 3.2g
Creatine Nitrate (NO3-T®) 1.5g
Betaine Anhydrous 1.5g
Nitrosigine® Inositol-Stabilized Arginine Silicate 1.5g
Arginine Alpha Ketoglutarate 1g
Taurine 1g
C4® Ultimate Energy & Focus Blend 858mg
N-Acetyl-L-Tyrosine, Caffeine Anhydrous (300mg), Velvet Bean (Mucuna pruriens) seed extract (standardized for L-Dopa), Theacrine (as TeaCrine®), AlphaSize® A-GPC (Alpha-Glyceryl Phosphoryl Choline), Zembrin® (Sceletium Tortuosum) aerial parts extract, Rauwolfia vomitoria root bark extract, Huperzine A (from Toothed Clubmoss (Huperzia serrata) aerial parts extract)
Percent Daily Values (%DV) are based on a 2,000 calorie diet. † Daily Value not established.
Other Ingredients:
Polydextrose, Silicon Dioxide, Natural Flavors, Calcium Silicate, Sucralose, Malic Acid, Citric Acid, Acesulfame Potassium, FD&C Red #40.

Directions For C4 Ultimate: Take one serving (1 scoop) of C4® Ultimate, mixed with 10-12 fl. oz. of water 20-30 minutes before training. During your workout, it is recommended that you drink plenty of water or performance beverage to stay hydrated. Some individuals may experience a harmless tingling sensation, which is attributable to beta alanine. USE ONLY AS DIRECTED.

Warnings: THIS PRODUCT IS ONLY INTENDED TO BE CONSUMED BY HEALTHY ADULTS, 18 YEARS OF AGE OR OLDER. Do not use this product if you are pregnant, nursing, currently taking PDE-5 inhibitors or nitrates for chest pain. Do not take this product before consulting a licensed, qualified, health care professional if you are taking any other dietary supplement, prescription drug or over-the-counter medication; or if, you suspect you have or have been treated for, diagnosed with or have a family history of, any medical condition. This product contains caffeine and should not be used in combination with caffeine or stimulants from other sources. Discontinue use 2 weeks prior to surgery. Immediately discontinue use and contact a medical doctor if you experience any adverse reaction to this product. Do not use this product continuously for more than 8 weeks. Do not use if safety seal is broken or missing. Store in a cool dry place. KEEP OUT OF REACH OF CHILDREN. This product is sold by weight, not volume. Some settling of powder may occur during shipping and handling, which may affect density of powder. This product contains the servings indicated when measured exactly by weight.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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