C4 Ultimate On The Go RTD

C4 Ultimate On The Go RTD

Ready to drink pre-workout for energy, pumps endurance & focus*
300mg Caffeine with CarnoSyn®, Citrulline Malate & Zembrin® in every serving, no mixing or shaking needed
9.9  out of 10  (20 Reviews)
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Product Overview

Fuel Your Ultimate

C4® Ultimate On The Go will fuel you through the most grueling workouts, while delivering incredible flavors and the perfect amount of carbonation to kick-start your tastebuds.

Ultimate Ingredients For Ultimate Domination

C4® Ultimate On The Go provides energy so that you can push harder and survive the most grueling workouts.* A powerful combination of caffeine, rauwolfia, and B vitamins delivers the Ultimate explosive energy to perform beyond what you’ve ever dreamed possible.*

C4 Ultimate On The Go Containers
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300mg Caffeine
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CarnoSyn® Beta-Alanine
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Citrulline Malate

Ratings & Reviews

C4 Ultimate On The Go RTD
Overall Rating
20 Ratings
Verified Buyer Rating
1 Ratings
Average Flavor Rating
4 Flavors
Top Rated Flavor
Sparkling Tropical Blast
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.
Oct 10, 2020
  • 10 Watermelon

Picked this up right before all the gyms went into lockdown because of the virus. Now that the gyms are back open, I so glad that I saved these until now. Excellent taste, long lasting energy with no crash, above average pump from bodybuilding movements, focus that lasted about an hour and enough endurance to keep pushing hard throughout the entire workout.

Aug 15, 2019

The first flavor I bought was the Arctic snow. I got it to try it out because of the voting that was going on...was only the 12 oz bottles, but the flavor was awesome. Then when I won a case, I chose the Orange Slice version...YUMFUKINYUMMY!! I was a little worried about them both when I read - ZERO SUGAR. Let's be real here...how good is any energy drink without sugar? OMG..these are now my drink of choice. Glad to see they won the contest....

Nov 09, 2018
Verified Buyer

I've bought arctic snow cone, I waited long time, because I live in Greenland, they arrived and I didn't hesitate to taste it I LOVE IT!!! worth the waiting,and the energy is totally good, i recommend to those who doesn't really have time to make one <3

Oct 12, 2018

Solid product! The flavor is on-point and it gives me energy for my workouts. It’s also super convenient so I can just grab one and be out the door or throw it in my gym bag. I would definitely use this more as a pre workout than energy drink, though!

Sep 04, 2018

Flavoring is amazing for all! The product itself is very powerful and love the convenience. If you are on the go and need a good pre workout there is nothing better!!

Aug 24, 2018

This stuff is powerful. Just a few sips and you'll feel the glorious beta-alanine tingles, and a huge rush of energy. I typically don't like to drink carbonated drinks right before a workout but these weren't too overwhelming, a few burps here and there. Tropical Blast tasted great, and I can't wait to try some of the other flavors. I will say, a case is pretty expensive compared to similar products on the market but if you don't have time to mix your own pre-workout at home, one of these will definitely do the trick.

Aug 16, 2018
  • 9 Orange

I like these quite a bit because of how potent they are. If I want to drink one of these all day at work I can (as opposed to an entire pot of coffee). I simply sip an entire can over a 10 hour shift and I am awake and alert all day. The other way I tried is before a workout and you could probably get away with just half a can. If you want a crazy pumped workout, drink the whole can, but you get a huge tingle going on from what I assume is the beta alanine, or similar complex.

May 30, 2018
  • 10 Orange
  • 10 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

Mar 25, 2018
  • 9 Orange
  • 7 Watermelon

Great flavor, great pump, good ratio of nutrients and stellar company... had a few questions about mixing supplements and called the number on the bottle and the customer service was amazing, extremely helpful and quick

Oct 24, 2017
  • 10 Orange
  • 10 Watermelon

C4 Ultimate is the greatest pwo out right now. The RTD makes it very convenient and tasty. Full dose of everything, open label, and that energy.. focus.. and pumps is unmatched! Love this stuff!! And that Arctic Snow Cone is oh so tasty

Oct 24, 2017
  • 8 Orange

This is one of the hardest hitting pre-workouts on the market. Amazing energy, laser focus, and a nice pump. The "On the Go" makes this an even easier choice when trying to decide which pre-workout to try. Quality ingredients, great product.

Oct 23, 2017
  • 10 Orange
  • 10 Watermelon

I wish I had thought of this and taken it to Shark Tank! I would be a rich man with a successful idea like this! Who doesn't want something that does the trick with the portion size already poured for you? There's no need to worry about water dilution, etc. The flavors above are spot on (no surprise there with Cellucor) Snow cone and watermelon were my favorite! This is much better than a powder in a scoop. Get it, sip it, and go!!

Oct 23, 2017
  • 9 Orange
  • 9 Watermelon

Great on the go option. Great flavors and the effects are on par with the traditional powdered version. If you are in a pinch or don't want to lug around your shaker and tub this is a solid option for you.

Oct 23, 2017
  • 9 Orange

When you need an extra kick to get you moving and motivated this is definitely your solution! This is strong like the powder form but in a convenient premixed pack! I didn't like the orange quite as much as I liked the Snow Cone but both flavors were good!! Just like the other OTG varieties these are definitely better when they are cold! I would definitely use these again!!

Oct 21, 2017
  • 10 Orange

Absolutely Amazing is all i can say. Crazy energy, No tingles or jitters, No crash. I had some of my best workouts with this. The flavors are amazing. Loved the Orange, But Snow cone is just as good. Will definitely buy again!

1 Size
12 - 11.66 Fl. Oz. Bottles
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4 Flavors
Fruit Punch
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Price: $42.99  ($3.58 / Serving)
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300mg Caffeine with CarnoSyn®, Citrulline Malate & Zembrin® in every serving, no mixing or shaking needed

What's in Cellucor C4 Ultimate On The Go RTD

12 - 11.66 Fl. Oz. Bottles Fruit Punch
Serving Size 1 bottle (11.66 fl oz)
Servings Per Container12
Amount Per Serving %DV
Calories 5       
Total Carbohydrate 1 g <1%**
Sugars 0 g
Niacin (as Niacinamide) 60 mg 375%
Vitamin B6 (as Pyridoxine Hydrochloride) 1 mg 50%
Folate Acid (500mcg Folic Acid) 833 mcg 208%
Vitamin B12 ( as Methylcobalamin) 70 mcg 2,917%
Sodium (as Sodium Citrate) 125 mg 5%
Citrulline Malate 6g
Carnosyn® Beta-Alanine 3.2g
Betaine Anhydrous 1.5g
Arginine Alpha-Ketoglutarate 1g
Taurine 1g
C4® Ultimate Energy 708mg
N-Acetyl-L-Tyrosine, Caffeine Anhydrous (300mg), 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:
Water, Natural Flavors, Sodium Citrate Dihydrate, Sucralose, Acesulfame Potassium, FD&C Red #40, FD&C Blue #1.

Directions For C4 Ultimate On The Go RTD: Consume one bottle (11.66 fl oz) of C4® ULTIMATE ON THE GO 20-30 minutes before dominating exercise... and life. Some individuals may experience a harmless tingling sensation, which is attributed to beta alanine.

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 or nursing. Before using this product, consult a licensed, qualified, health care professional, including but not limited to, if: you are taking antidepressants such as a MAOI (Monoamine Oxidase Inhibitor) or SSRI, blood thinners, nonsteroidal anti-inflammatory drugs, pseudoephedrine, or 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, including but not limited to: high or low blood pressure, diabetes, glaucoma, anxiety, cardiovascular, psychiatric or seizure disorders, cardiac, arrhythmia, stroke, heart, liver, kidney or thyroid disease, or difficulty urinating due to prostate enlargement. This product contains caffeine and should not be used by individuals wishing to eliminate caffeine from their diet or in combination with caffeine or stimulants from other sources, including but not limited to, coffee, tea, soda, or other dietary supplements and medications. 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 if safety seal is broken or missing. Store in a cool dry place. Do not freeze. KEEP OUT OF REACH OF CHILDREN.

* 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.