C4 Ultimate Pre Workout

C4 Ultimate Pre Workout

The Ultimate Pre-Workout Experience
Fully-Loaded Formula in Single Scoop Dose
9.3  out of 10  (177 Reviews)

Product Overview


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.

This maxed-out formula packs a heavy punch of focus, performance and endurance boosters to push you to your ultimate limit.1,2,3

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 Performance1,2


Zembrin®, alphasize® (alpha gpc), & huperzine a

1 Caffeine helps to increase alertness and to improve concentration. Do not exceed a daily intake of 300 mg of caffeine.

2Caffeine contributes to an increase in endurance performance and capacity. The beneficial effect is obtained with caffeine consumption at doses of 3 mg/kg body weight at least one hour prior to exercise and only if any other caffeine consumption is avoided for at least 12 hours prior to consumption of the product in habitual caffeine consumers.

3Creatine increases physical performance in successive bursts of short-term, high intensity exercise. The beneficial effect is obtained with a daily intake of 3 g of creatine.

Ratings & Reviews

C4 Ultimate Pre Workout
Overall Rating
177 Ratings
Verified Buyer Rating
43 Ratings
Average Flavor Rating
8 Flavors
Top Rated Flavor
Raspberry Lemonade
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 22, 2020
  • 9 Strawberry Watermelon

I received a tub of the C4 Ultimate CLEAR in the strawberry watermelon flavor from a promo win. The clear version has no dyes, no artificial flavors,and has ALL the ingredients listed with no prop blends. After using it 6x in the past 3 weeks where I used it in between other pre's this is my final thoughts on it. The powder mixes very well with just a little foam that settles very quickly and just a bit of sediment on the bottom of the shaker cup. The flavor in 12oz of water has a slight strawberry flavor at first but then the watermelon flavor takes over so I would say it's a 30% strawberry 70% watermelon and sipping on it you kind of get a jolly rancher type flavor. I honestly don't think anyone is gonna have an issue with the flavor cause I found it easy to drink and enjoyable each time I used it and it's not overly sweet. The energy kicks in about 20 min after consuming it and for me it was very smooth and I would say it lasted about 90min before I felt it taper off. This has 1mg of Alpha Yohimbine and I feel that this is the key ingredient in the stimulants added that really helps give this PW it's kick and without it I think it wouldn't do much on the energy. The energy from this version is good and 1scoop is all you need as opposed to the other versions in the yellow tubs where 2 scoops are needed. If your slightly sensitive to yohimbine I don't think you'll have an issue with the 1 mg in this formula. The focus factor for me was pretty weak and I honestly never really felt much focus from ANY version of C4 that I've used in the past so for me the energy definitely out shines the focus. Pumps on this version are pretty good where you'll get hard vascular pumps and if your in shape your muscles will definitely have more pop to them as you train. The pumps aren't big puffy swollen pumps cause there is no glycerol in this formula so if that's what you want then you'll need to add at least 2 gm of glycerol to experience those types of pumps but on it's own it delivers pretty good pumps. Overall I would say this is a pretty good PW where I liked it for certain body such as arms, shoulders, and pecs and it's a good conventional PW to through in between using more heavier stimulant based pre's so that you give your body a rest from the heavy stimulants. If your someone who is use to using exotic stimulants each time you train then I honestly feel you won't feel the effects of this one and if your someone who uses the regular version of C4 and it's not hitting well in the stimulant dept then I would strongly suggest trying C4 Ultimate cause with this one 1 scoop is all you need and the effects are stronger than the regular version of C4.

Dec 27, 2019
Verified Buyer
  • 10 Orange Mango
  • 9 Icy Blue Razz

Orang Mango is easily the best tasting pre-workout I've ever had. Icy Blue Razz is also good but is VERY blue, just dont be surprised if things (inside and out) change color

Oct 27, 2019
  • 6 Sour Batch Bros

Looking for a break from exotic stims (DMHA, Eria, etc.), I decided to finally give C4 Ultimate it's chance. I had used the original C4 in the past and never really thought much of it. Seemed like a pretty safe pre-workout, albeit underdosed in a few categories. C4 Ultimate really lives up to its name, however. There's no underdosing on this label, as you get full shots of Cit-Mal, Beta-Alanine, Betanine, and Taurine. The 300 mg of caffeine falls right into the sweet spot for me, as 400 mg is reserved for days I want my eyes to pop out of my skull, and 200 mg for those low-key workouts. It's a clean energy ride, and doesn't feature a crash at the end. Only real complaint I have is that despite the caffeine amount being disclosed, the rest of the Energy & Focus blend is not. Also, the only flavor I tried is Sour Batch Bros. It's not necessarily bad, just mundane. More like a mute gummy-worm flavor, yet it still mixes easily and doesn't come out like syrup. In all, I'd say this is the best non-exotic stimulant pre-workout I've tried.

Aug 29, 2019
Verified Buyer
  • 10 Orange Mango

Have been using Dymatize pre-workout for sometime. Good product but I decided to try something different and went for the Cellucor C4 Ultimate. The flavor Orange Mango was not bad. More importantly it thoroughly dissolved in the shaker. No grainy residue on the bottom of the shaker like Dymatize. My workout at the gym was even better than when using Dymatize. Seemed to have more strength and stamina. When I finish the last of my Dymatize I will be switching to Cellucor C4 Ultimate. For info, I am a 67 year old male who has been training for about 40 years.

Aug 27, 2019
  • 1 Icy Blue Razz

The worst pre workout ever. No energy, no effects on my workout. I was using Pre-Gym and Nitraflex before this and both of them were amazing. After reading the reviews, I decided to change my pre-workout and I'm highly disappointed. Stomach issues, blue stool and fatigue are just some of the problems with this product. DO NOT ORDER! I thought because of the premium price Cellucor might've put better ingredients but no. This is as bad as they come.

Aug 19, 2019
Verified Buyer
  • 1 Strawberry Watermelon
  • 3 Sour Batch Bros
  • 10 Orange Mango

I normally don't write reviews, but these flavors required it. I chose the Sour Batch and Strawberry Watermelon based off ratings and they were both terrible. Both me and my husband (who loves sour) had a hard time getting them down. The strawberry had a weird, but strong plastic flavor. The Orange Mango, which I ordered on a whim, was fantastic and easy to get down. Highly recommend!

Aug 12, 2019
  • 9 Orange Mango

Didn't do a thing to me but it tasted real good! I felt no difference in energy, no tingles, no pump.

Aug 10, 2019
  • 10 Icy Blue Razz
  • 10 Strawberry Watermelon

Def had great pumps and strong lifts with this pre workout def one of the better ones out there. I had to stop using this because my stomach didn't agree with the artificial coloring and flavors for some reason this would destroy my stomach

Jul 18, 2019
Verified Buyer
  • 9 Orange Mango
Jul 04, 2019
  • 9 Orange Mango

Balanced dosage in the various ingredients.

Mar 31, 2019
  • 8 Orange Mango

Now that's a good pre-workout buzz...... Liked the stuff. Has most of what I look for in a pre-workout. And all the energy. Got me hopped up for my workout. Recommend.

Mar 31, 2019
  • 10 Orange Mango

Disclaimer: I havent had a pre workout in a very long time and received this as a sample from another product ordered. With that said, I found that this product greatly enhanced my workout and will consider purchasing, but at the price listed I'm tempted to look elsewhere hoping for similar results.

Mar 16, 2019
  • 10 Icy Blue Razz

This is a great Pre workout! Love the energy boost, the pump is great. Keeps me focused and going the whole workout! However.... The Blue Razz is little heavy on the "FD&C Blue#1. I feel like it doesn't really need to be so heavy on the blue dye lol, but that's my opinion. (It is the dye C4 uses to make it blue. It is a very strong dye and if you are like me, my body does not process it well and most comes out later. something to keep in mind, but does not stop me from using this amazing product!)

Feb 28, 2019
Verified Buyer
  • 10 Strawberry Watermelon

Best preworkout drink I have ever used.

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.

1 Size
20 Servings
Choose a Size
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4 Flavors
Strawberry Watermelon
Choose a Flavor
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Price: £34.99  (£1.75 / Serving)
Flavor Rating: 9.1
Fully-Loaded Formula in Single Scoop Dose

What's in Cellucor C4 Ultimate Pre Workout

Serving Size 22 grams (1 rounded scoop)
Servings Per Container20
Per 6.5g %RI ‡
Vitamin C 75 mg 94%
Nicotinamide 3 mg 19%
Vitamin B6 1 mg 71%
Folic Acid 200 Ug 100%
Vitamin B12 2.5 Ug 100%
L-Citrulline DL-Malate 6,000 mg **
Carnosyn® Beta-Alanine 3,200 mg **
Micronized Creatine Monohydrate 3,000 mg **
Betaine Anhydrous 1,500 mg **
Nitrosigine® (Inositol-Stabilized Arginine Silicate) 1,500 mg **
Arginine Alpha-Ketoglutarate 1,000 mg **
Taurine 1,000 mg **
N-Acetyl-L-Tyrosine 400 mg **
Caffeine Anhydrous 300 mg **
Rhodiola extract (Rhodiola rosea) 200 mg **
Cocoa extract (Theobroma cacao L.)(standardized for Theobromine) 100 mg **
Panax ginseng extract 30 mg **
† Reference Intake
** Reference Intake not established
L-Citrulline DL-Malate, Carnosyn® Beta-Alanine, Micronized Creatine Monohydrate, Betaine Anhydrous, Nitrosigine® (Inositol-Stabilized Arginine Silicate), Polydextrose, Arginine Alpha-Ketoglutarate, Taurine, Anti-caking Agents (Silicium Dioxide, and Tricalcium Phosphate), Flavours, N-Acetyl-L-Tyrosine, Caffeine Anhydrous, Sweeteners (Acesulfame Potassium, and Sucralose), Trisodium Citrate, Rhodiola extract (Rhodiola rosea), Vitamins (Ascorbic Acid, Folic Acid, Nicotinamide, Pyridoxal-5-Phosphate, Methylcobalamin), Cocoa Extract (Theobroma cacao L.)(standardized for Theobromine), Panax ginseng extract, Colour (Allura Red).

Directions For C4 Ultimate Pre Workout: Take one serving (1 rounded scoop) of C4® Ultimate, mixed with 415-475mL of water 20-30 minutes before training. Food Supplements should not be used as a substitute for a varied, balanced diet and healthy lifestyle. Some individuals may experience a harmless tingling sensation, which is attributed to beta alanine. DO NOT EXCEED RECOMMENDED DAILY DOSE.

Warnings: THIS PRODUCT IS ONLY INTENDED TO BE CONSUMED BY HEALTHY ADULTS, 18 YEARS OF AGE OR OLDER. Contains caffeine (300 mg per serving). Not recommended for children. Do not take if pregnant or nursing. Do not take this product before consulting a licensed, qualified, health care professional, including but limited to, 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. Do not consume more than 400mg of caffeine from all food and food supplement sources per day. 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.

For Cherry Limeade and Strawberry Watermelon flavours: Allura Red Red Lake #40 (E129) - FD&C Red 40 may have an adverse effect on activity and attention in children.

Food Supplement with Sweeteners.

Nutrabolt® 3rd Floor, 207 Regent Street, London, W1B 3HH, United Kingdom

Made in Belgium

* 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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