C4 Pre Workout Review

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C4 Pre Workout











  • Wide range of flavors.
  • Affordable.
  • 70% of people rate over 4/5 stars on Amazon.com


  • New formula tastes chalky.
  • Previous legal issues
  • Reports of powder going clumpy/hard.
  • Caffeine heavy.

Man doing bicep curlsPre workouts are popular among both hardcore gym goers and newbies alike. The reason for this is because it helps you do more reps, go harder, and recover faster.

There are hundreds of pre workouts out there. Some of these will help your body reach its full potential.

One such product is C4, and this review centres upon all you need to know about this product and if it is right for you.

Cellucor C4 Pre-Workout

If you are curious about what C4 Pre workout is, you’ve come to the right place. This stuff, in a nutshell, is great and gives users increased energy, pumps, focus, and stamina.

It’s all made in the USA by a company called Nutribolt. These guys specialize in nutritional science.

The product claims to do the following for those who take it:

  • Increases your focus
  • Increases your stamina
  • Gets you max energy so you can go hard in the gym
  • Gets you more muscle pumps.

There are a dozen great flavors to choose from:

  • Bombsicle (tastes like an ice pop)
  • Pink Lemonade
  • Wild Fruit Blast
  • Green Apple
  • Fruit Punch
  • Watermelon
  • Strawberry Margarita
  • Cherry Limeade
  • Juicy Candy Burst
  • Tart Candy Explosion
  • Blue Razz
  • Orange Burst

What Are The Ingredients?

Curious about what’s in this blend?

Let’s investigate it.

  • Vitamin C– 250 mg-boosts your immune system and improves blood flow
  • Niacin – 30 mg- increases blood flow
  • Vitamin B6 – Promotes glucose release from lactic acid, and synthesizes neurotransmitters such as GABA, serotonin, Norepinephrine, and epinephrine
  • Folic Acid – 250 mg- helps muscle cells recharge
  • Vitamin B12 – 35 mcg- Promotes focus and helps you stay alert
  • CarnoSyn Beta-Alanine – 1.6 g- Boosts your endurance and power, reduces lactic acid, so you don’t feel so sore while working out.
  • Creatine -1g – Weightlifters love this stuff. It gets your energy restores so you can do the max amount of work at the gym.  It is easily absorbed by the body and is used to create ATP, which muscles need for energy.
  • Arginine – 1g- This helps get you the pumps you want and boosts blood flow. It helps your muscles recover after a serious workout.
  • Explosive Blend“425 mg -this consists of N-Acetyl L-Tyrosine, caffeine anhydrous and Velvet Bean, plus Theacrine.

These ingredients respectively boost your focus and bring down your stress levels, boost up your energy,  stimulate the hormone dopamine, and increase your mood and motivation.

The ingredients work by way of the vitamins included that keep your energy levels up. B Vitamins work to get those energy levels to an all-time high.

Vitamin C promotes good cellular health during workouts. Caffeine and Theacrine get you super high energy levels that will have you lifting heavy for as long as you want.

This stuff cuts down on the lactic acid you feel and lowers your levels of fatigue, while simultaneously promoting fat loss and building muscle mass.

Is C4 Pre-Workout Banned

Some people may think that because the formula is so strong and so potent, and because it works, it must be banned or otherwise not allowed.

There is some truth to this – but by and large, it is NOT banned, and you are free to use it as a private citizen just going to the gym.

If you are planning on entering a contest of any sort, such as a figure or bodybuilding competition, or any other sports tournament, check the rules over to verify that pre workout substances are okay to use.

This particular blend contains nothing illegal. However, it’s best to play it safe, so you are not disqualified from your competition.

So, where do the rumors regarding the formula being banned come into play?

Let’s take a look at a news article.

This story is out of the US State of Wisconsin. Ten high school football players were suspended temporarily after they took the drink.

The formula at the time contained Synephrine HCL, which is recognized as a performance enhancing substance and is banned by the Wisconsin Interscholastic Athletic Association. It is important to note that this article is from 2012, and the formula has since changed.

The NCAA has no complete list available when it comes to their banned substances, says this Wikipedia article.  Thus, it is best to check with your coach or team doctor if you are a student and seeking to use this in order to amp up your performance or workouts. 

According to some sources we perused, caffeine was a banned substance, which we know is contained within C4’s formula.

The bottom line? It’s not banned for average people just going to the gym. But for those of you in any sort of competition, review the rules with whoever is overseeing your event so that you don’t end up on the sidelines.

Is C4 Pre-Workout Approved by FDA?

In short, the answer is NO, and this supplement is not approved by the FDA. However, all the ingredients have been clinically studied, and you will find many of them in other supplements.

As a matter of fact, there was actually a lawsuit filed against Cellucor, the manufacturer of C4 Preworkout.

We don’t say this to scare you, but to just make you an informed consumer.

Let’s explore what the Class Action Lawsuit was all about.

Why Did They Have A Lawsuit Filed Against Them?

More often than not, these supplement companies want to push the limits. They want their users to keep coming back thanks to the great results and explosive energy they feel.

In this particular instance, the lawsuit claims that C4 was selling misleadingly labeled packages when selling C4 pre workout.  Says ClassAction.org, “While NutraBolt sells its workout powder in purported 30 and 60 serving size containers, the lawsuit alleges the product’s opaque packaging conceals from consumers the true amount of product inside.”

The lawsuit claimed that there was a lot of slack fill, also known as empty space inside the canisters, which contained the powder. The plaintiff accused C4 of only filling its containers halfway as a means of lowering the costs.

So the issue was not with the product’s ingredients, but instead with the amount of pre workout powder actually contained within the product.

This was just one lawsuit filed against the company. Another lawsuit did deal with the ingredients of C4, but the case was ultimately dismissed. If you are curious, here’s what the lawsuit alleged:

“Defendant Woodbolt sells the popular Cellucor branded dietary supplements, which include… [ingredients] …these supplements contain leucine nitrate, creatine nitrate, and arginine nitrate, newly formulated ingredients that chemically fuse an amino or organic acid with nitrate to purportedly increase  these ingredients’ effectiveness.”

The lawsuit goes on to say that the safety of the ingredients had not been established by any scientific measure. The three Nitrates, as mentioned above, were brand new dietary ingredients that previously did not exist in the food supply.

The case then went on to say that the defendant, which is the manufacturer of C4, would have to provide evidence to the FDA that the ingredients would not harm others before they could be sold.

Then, the lawsuit continued on to say that the supplements are sold as being able to provide exceptional benefits to the consumers, “but ultimately do not deliver.”

Once again, it is important to note that this case was dismissed and that many other people are enjoying using C4 during their workouts. It’s best just to be an informed buyer and be “in the know” before you make the purchase.

C4 Pre-Workout Side Effects

Once again, we do not want to scare you with any of these side effects, but we do want you to be informed. If you know you are sensitive to any of the ingredients we talked about a bit earlier, such as velvet bean extract, n-acetyl l-tyrosine, arginine, beta-alanine, or caffeine,  it may be a good idea to look for a different pre workout formula.

That being said, let’s look at the side effects other users have reported when it comes to using Cellucor C4.

  • Allergic Reaction: This is common among some users and comes about as a result of having an intolerance to C4 ingredients. You know your allergies-make sure you look over the ingredients label very closely to ensure you are not allergic to some of the natural ingredients found inside this formula. If you are unsure, start with a small amount of the product to see how you react to the formula.
  • Headache – Caffeine can lead to headaches. If you have a low caffeine tolerance, C4 may not be the right pre workout for you.
  • Nausea – In the worst cases, users have reported vomiting, in the least bad cases, people have reported having an upset stomach. If you fear to have a stomachache, start with half the recommended dose to see how you fare.

Lesser Reported Side Effects

The ones we discussed above are the most common side effects we’ve seen so far as we conducted our research. Here are a few of the lesser reported side effects that you should be aware of.

  • Itching of the skin
  • Nervousness
  • Insomnia, inability to fall asleep (common among those who go to the gym at night)
  • Tunnel vision
  • High blood pressure
  • Heart Palpitations
  • Restlessness

Once more, if you feel ANY reservations about taking this particular product,  be sure to ask a doctor first before you take it. They will be able to tell you if you have any medical conditions that will make your use of the product high risk.

A doctor can also help you by looking at different pre workouts and telling you the one that best fits your needs.

If you have high blood pressure, are sensitive to caffeine or have kidney issues, it is advised that you avoid the use of C4.

Is C4 good for weight loss?

The answer is yes…and no.

Taking C4 will NOT make you drop pounds like magic. Weight loss only happens when you consume fewer calories than you consume. In other words, you have to eat less and move more.

However, C4 can help you go hard in the gym. You may notice a boost in your energy level, and the ability to get those extra reps or laps in with ease.

This, in turn, burns more calories. Combine this with eating a healthy diet, and you could very well see weight loss as a result of taking C4.


All in all, Cellucor C4 is an amazing product. It comes in at a great price, has ingredients that have been clinically studied to be effective. The variety of flavours available and the different kinds of C4 Preworkout for sale make it a great choice for athletes of all skill levels.

Our recommendation?

Go read some reviews for yourself, and then get yourself a container if you think it’s right for you…then go kill it in the gym!