C4 Ultimate

C4 Ultimate

The Ultimate Pre-Workout Experience
Fully-Loaded Formula in Single Scoop Dose
9.3  out of 10  (165 Reviews)
2 Sizes
20 Servings
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5 Flavors
Cherry Limeade
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Price: $39.99  ($2.00 / Serving)
Flavor Rating: 9.5
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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
165 Ratings
Verified Buyer Rating
38 Ratings
Average Flavor Rating
8 Flavors
Top Rated Flavor
Sour Batch Bros
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.
Feb 12, 2019
  • 9 Cherry Limeade

I got this in a sample pack when I ordered a protein powder, the taste is good and the results were also great.

Jan 22, 2019
  • 10 Sour Batch Bros

I was very blessed to try this product thanks to a Cellucor promo The flavor is exactly what you'd expect it to be. It's sour but if you're into sour candy then you're going to love it. If you like sour patch kids candy, then this is your flavor to go with. I love how it tastes and it's something i look forward to. 10/10 Mixability is also perfect. There are no chunks, no residue whatsoever. Not much foaming either. It's a perfect pre-workout to mix. 10/10 Effectiveness: C4 Ultimate is a pretty strong pre-workout. It has 300 mg of caffeine in it. But it gave me a lot of energy during my entire workouts. The focus was extremely good, didn't get distracted but was only thinking about lifting heavy. I felt strong and have made some PR's with this product. I definitely recommend it and 1 scoop is more than enough. 9.5/10 Supplement: C4 Ultimate has a lot of good ingredients. It has 300 mg caffeine, it has a lot of vitamins such as vitamin C and B12. It has a good mix of everything you need and it is a highly effective pre-workout. Can't go wrong with it. 10/10 Overall i loved C4 Ultimate, it's an amazing product. It's not the cheapest of all pre-workouts with $2 per scoop, however you definitely getting your money's worth and with a great flavor, mixability, effectiveness etc you can't go wrong with this one. 10/10 overall. Great supplement.

Jan 12, 2019
Verified Buyer
  • 10 Orange Mango

Great product, gives me lots of energy for longer and more intense workouts. It also drastically improves my focus. Orange Mango tastes great I definitely recommend this product. Sincerely MikeyMike

Jan 07, 2019
Verified Buyer
  • 10 Orange Mango
  • 10 Cherry Limeade

This is my first choice pre WO when I want to get some heavy leg presses! Great taste, No stomach issues and VERY effective!

Jan 03, 2019
Verified Buyer
  • 10 Orange Mango

Holy crap this PWO kicks my *** even after 2 months of using it 5x/week. I've cycled through many PWOs (Nitraflex, EGN, Pre-Jym, MP Assault, Pre-Kaged, etc.) and only a select few compare to the pump from C4 Ultimate (Pre-Jym mostly). Pros: Will make you feel like you can lift a truck. Great flavor that I haven't gotten sick of yet. Mixes well with water. Lasts my entire workout (1-2 hours) and then more. Cons: On the more expensive side. Very noticeable paresthesia right after drinking.

Nov 29, 2018
  • 10 Orange Mango

I received a single-use sample of the orange mango in my last order. First off, the orange mango tastes great, with none of that artificial taste that orange flavors sometimes have. BUT I didn't fall in love with this, because I experienced some of the worst stomach problems I've ever had with a pre-workout. This stuff made me SWEAT, and although that isn't a new sensation (I've taken plenty of thermogenics, so I'm used to sweating) it was that uncomfortable cold sweat as if you have a fever. Probably 15 minutes after taking this I started having stomach cramps, which I've never experienced with a pre workout before (I've used neurocore from muscletech, EVL Shred, etc.) I ignored them at first, but then a quarter of the way into my workout (sorry if this is TMI) I pretty much had to run to the bathroom I was so uncomfortable. I've never had a reaction like this with a pre-workout (I don't have a sensitive stomach), but I have taken fat burners that cause similar issues the first day but then after that were totally fine. So I still gave this a 7, since I only had a single-use sample and I can't give this a try a second day. I definitely felt the focus and energy, but if a pre-workout causes me to have to cut my workout short then it's a big fat NO from me. I would definitely stay away from this if you have a more sensitive digestive system.

Oct 15, 2018
Verified Buyer
  • 10 Icy Blue Razz

Doesn't have a nasty smell and mixes great in a 28 oz shaker bottle with cold water. I haven't had any issues with settling or clumping. As far as flavor goes icy blue razz tastes exactly like blue razz berry blow pops. It gives a mild tingly sensation while drinking it, but nothing overbearing. It also gives enough energy and pumps during workouts, but isn't so much that you're shaking and getting nervous and jittery. Honestly, the best thing about this pre-workout is the amount of concentration, focus, and motivation it gives me while in the gym. The only sort of downside to this pre-workout is it makes me sweat like crazy while in the gym, which really isn't bad, but noticeable.

Oct 11, 2018
Verified Buyer
  • 10 Sour Batch Bros

I have found the preworkout that I will continue to use; there is not a need to look any further. My gains have been great. I have increased my max since using it. I feel that there is an abundance of pump during my workout. I have tried products that increases my energy a great deal but there was not much pump present. The taste is great as well. I’m trying to be very detailed because I want to convey my satisfaction with this product.

Sep 23, 2018
Verified Buyer
  • 10 Sour Batch Bros

C4 Ultimate is an amazing preworkout, combining energy for days with good mixability and great flavors. I especially like the Sour Batch Bros as I love sour patch kids post workout and now get to enjoy the flavor before and after I lift. It is a source of good clean energy, not making me jittery or giving me an upset stomach like some of the other preworkouts out there. All in all I would definitely recommend this to others and will be ordering more when my supply runs out.

Sep 22, 2018
Verified Buyer
  • 10 Orange Mango

Really nice product , you can go for the extra pump with it , I sweat a lot every time I use it , 100 % recommendations for this

Sep 07, 2018
  • 9 Sour Batch Bros

Cellucor C4 Ultimate in Sour Batch Bros was a hit. The best way to describe it would be a sour liquid version of a green jolly rancher. Certainly had a strong sour green apple flavor which was a delight to have preworkout. Flavor even held up when mixed with a ½ scoop of waxy maize. Effect wise, the ultimate was hitting as a pre. Had the body primed and ready to smash 330 am morning sessions. Energy and pumps while using were spot on each session. Would easily recommend and will continue to use

Sep 06, 2018
  • 10 Sour Batch Bros

I recently got to try the new flavor of Sour Batch Bros. Let me tell you The flavor is absolutely amazing!!! This is coming from someone who is in love with Sour patch kids candy, This flavor is on point! The one thing i absolutely love about the ultimate is the 300mg of caffeine. This is what gets me through those 4am workouts. With the other ingredients Citrulline Malate, Betaine,Beta- Alanie added this is a top preworkout on the market.

Aug 26, 2018
  • 10 Icy Blue Razz
  • 8 Sour Batch Bros
  • 10 Orange Mango

This review is mainly for Sour Batch bros. I just tried this flavor this week. I was hoping this flavor was going to taste like sour patch kids candy. It was not sour to me at all. It was really sweet like candy, so I liked it, I guess I thought it would taste different. I gave it 8/10 because it not my favorite but I still enjoyed it. I will post my original C4 ultimate review below on how I like this product as a whole: Cellucor C4 ultimate is by far the BEST PRE WORKOUT ON THE MARKET!! This stuff is everything you need to have an awesome lift session! It's worth every penny! I have the perfect amount of energy and strength with this product. Tons of focus with no jitters or feeling like I'm on crack. The pumps are insane! Seriously I can lift over two hours taking this stuff and feel like I can keep going! Makes me not want to leave the gym! My favorite pre workout of all time! I would only recommend this product to serious lifters. One scoop and it's beast mode! Flavors: Icy blue razz will always have my heart! Cellucor puts out the best products with icy blue razz. Orange mango was super refreshing, I’m not a fan of mango really, but I still loved this orange mango. Always so impressed with cellucors flavors

Aug 11, 2018
  • 8 Orange Mango

After reading the list of ingredients and reading all the good reviews, i was sure i was going to like this pre workout. After all, it is very similar to some of the other products that i have used and loved such as the dymatize pre and pre kaged, with the inclusion of a nootropic blend to enhance focus. However my experience was not as i thought. I understand that there are lots of people who love this pre, so dont let my personal experince deter you from trying it. But for some reason this stuff causes me to become very light headed during my workouts, especially with higer intensity, and heavier lifts. A few times to the ppint where i had to stop my workout and go home because i felt on the verge of passing out. This has never happened to me with any other pre and the only reason i can think is that my body does not agree with the particular stack of nootropics that they include in this product. I do have very low blood pressure as it is so perhaps it lowers it too much and causes this. Not quite sure but sadly i dont think i will be finishing the tub i have. If this does not bother or affect you the same way it does me, which for most people it doesn't seem to, then by all means buy this pre workout. It has a very good stack of ingredients that are all dosed effectively. My advice would be to try it but dont dump a scoop in your shaker and slam it the first time you try it thinking that you can handle the 300mg of caffeine as you always have before. I did that and had a horrible time lol.

Jun 29, 2018
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

20 Servings
20 Servings
$2.00 Per Serving
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40 Servings
40 Servings
$1.75 Per Serving
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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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