Updated: 04/18/2017 - Site operated by Pronabolin
By Summer Banks Apr 14, 2017

The results of my research into Cellucor C4 were somewhat interesting. We did an extensive review, examining the side effects, ingredients, clinical support and overall customer service of this company. Furthermore, we took the time to sort through hundreds of comments from user posted online. Lastly, we summarized and condensed all of the facts and feedback to give you with the information you need.

Cellucor C4 Readers: Click here to find out why we're giving away samples of our product, Pronabolin.

What is Cellucor C4?

First off, Cellucor C4 is pre-workout supplement. The ingredients are beta alanine, creatine nitrate (NO3-T), arginine akg,Explosive Energy Blend: n-acetyl-l-tyrosine, caffeine 150mg, velvet bean (mucuna pruriens) seed extract (l-dopa), TeaCor tetramethyluric acid. You’ll add one scoop to water and drink. After accessing your tolerance level, you can use an additional scoop prior to training. Supposedly, you’ll experience unbelievable muscle pumps, explosive energy and intense focus.

Cellucor C4 was first released in December of 2014 by Cellucor; a brand started in 2002. The official website, online retailers and local stores sell the supplement. We like that it uses a few natural ingredients and the longevity of the business, but read on…

Cellucor C4 Side Effects – “Mild or Worse?”

Our first concern relates to Cellucor C4 ingredients causing side effects. “If you take this before a workout, you will probably get an energy boost,” said our Research Editor. “But, using a product that contains 125mg of caffeine per serving multiple times per day could cause adverse reactions.”

One customer said, “I felt really jittery and sick after taking Cellucor C4.”

“Asked myself if Cellucor C4 caffeine content was actually 125mg, because it made me sick,” said another user.

While some users talked about side effects, we located Cellucor C4 reviews where customers didn’t experience any reactions.

“Good clean energy. Definitely on my must buy list, “reported a customer.

Bad Taste – “From Fruity Flavors?”

According to Cellucor C4 pre workout reviews, it has a less than desirable taste. One customer said, “For one, the taste wasn’t good at all and I didn’t notice a change in my performance at the gym.”

Another user stated, “It tasted a bit artificial. Not for me.”

Based on some reviews of Cellucor C4 ingredients, users enjoyed the refreshing flavors.

“Love the Icy Blue Razz. It’s my go to flavor,” said a customer.

“It’s hard to choose because they’re all good,” reported another.

Our research shows that when there’s a particular part of a supplement that’s problematic, such as not being flavorful, long-term success is minimal. If Cellucor C4 is in fact hard to swallow, this could certainly become an issue.

The Science – “Proven Effective?”

Even though Cellucor C4 is touted as “explosive energy for legendary workouts” on the official website, we were unable to find clinical studies to support these claims. It’s unfortunate, considering there’s solid science supporting the metabolism boosting effects of caffeine. For us at DietSpotlight, it’s imperative that we find documented research connecting a products ingredients and effectiveness.

The Bottom Line – Does Cellucor C4 Work?

So, will Cellucor C4 pre-workout provide explosive energy? Well, we like that it contains a few natural ingredients and that the company is a trusted name in the industry. But, we have concerns about this one because there’s no research supporting the claims. We’re also a bit skeptical due to user reviews talking about side effects and poor taste.

If you’re ready to boost energy levels and transform your life, we suggest going with a supplement containing ingredients backed by science and no reports of harmful side effects.

Among the best products we’ve seen this year is our product called Pronabolin. The formula contains nine clinically-tested ingredients, with results often published in journals such as The Aging Male.

Also, we’re so confident that you’ll love our supplement that we’re offering a 120-day money-back guarantee and multiple-bottle discounts.

Cellucor C4 Questions & Answers:

We dug around and found some important details about Cellucor C4, so we created this helpful FAQ.

What are the side effects of Cellucor C4?

Cellucor C4 side effects may include nausea, vomiting, lightheadedness, and insomnia. This is likely due to the high caffeine content.

What are the ingredients in Cellucor C4?

Cellucor C4 ingredients are beta alanine, creatine nitrate (NO3-T), arginine akg,Explosive Energy Blend: n-acetyl-l-tyrosine, caffeine 150mg, velvet bean (mucuna pruriens) seed extract (l-dopa), TeaCor tetramethyluric acid.

What is the active ingredient in Cellucor 4 Pre-workout?

The active ingredient in cellucor C4 is beta alanine.

Does Cellucor C4 Work?

Though some users have reported success with Cellucor C4, it is a pre-workout drink powder so it won’t necessarily promote muscle growth. Creatine has been studied and it can hydrate muscles for faster recovery.

How much does Cellucor C4 cost?

Cellucor C4 is available on the official website for $23.99 for 30 day supply.

How should I take Cellucor C4?

The product manufacturer recommends taking one serving with 4 to 6 ounces of water 20 to 30 minutes before a workout. Determine your tolerance level, then you can take an additional scoop before training. The company recommends not exceeding two servings in a 24-hour period.

Can I take Cellucor C4 if I have a health condition?

If you’re pregnant or nursing, those with health conditions, anyone taking prescription medications or under 18 years of age should speak with a licensed physician before taking any dietary supplement, including Cellucor C4 pre-workout.

What do users like about Cellucor C4?

Buyers liked how easy it was to mix Cellucor C4.

What do users NOT like about Cellucor C4?

There are reports of nausea, bad taste and high price that users don’t like.

Do I have to have a blender to mix Cellucor C4?

While having a blender will ensure the drink mixes well, it is also possible to mix the drink with a shaker cup.

Should I cycle Cellucor C4?

It is recommended you use the product for up to eight weeks, then discontinue for 2 to 4 weeks.

Why does my skin feel weird after using Cellucor C4?

The beta alanine amino acid may cause itching and tingling about 10 to 20 minutes after using the product.

How do I contact the Cellucor C4 customer service department?

You can contact the Cellucor C4 customer service department by calling 1-866-927-9686, by emailing support@cellucor.com or by mailing letters to Cellucor HQ 3891 S. Traditions Dr. Bryan, TX 77807.

Can I contact Cellucor C4 through social media?

Yes, you can contact Cellucor C4 through Facebook, Twitter and Instagram.

Do you know of any special deals or discounts on Cellucor C4?

There are special deals and discounts on Cellucor C4. The company is offering 20% off select items. However, we’re excited to see that our readers are excited about taking advantage of Pronabolin’s multiple-bottle discounts, and 120-day money-back guarantee. Click above to to learn more.

Cellucor C4 Side Effects:

Cellucor C4 is a fat burner that contains caffeine. This stimulant can cause side effects in people that are sensitive to it, similar to Preseries Lean. After reading hundreds of reviews for the supplement, we realized though there are some, negative reactions are a rarity.


“Maybe it’s just me, but I had terrible gastrointestinal issues like an hour after taking one scoop in 6 oz water. Later that night I also kept waking up with severe acid reflex and my throat burned the rest of the night, and throughout the next morning.”    Nicole


“One of the things that I did not like about this product, however, was the fact that it gave me a tingly sensation that did not feel right. I believe this tingly sensation was from the caffeine, since I do not have caffeine on a regular basis and it was too large a dose for me.”    Rachel


“I didn’t feel energized, I felt weak at the gym, and worst of all, taking it in the evening and working out after left me with terrible sleep patterns.”    Karl


“I only took 1 scoop of this product and then worked out and I started feeling funny. My heart was racing and would not slow back down after my set and I only could do half my workout routine. Feeling so sick light headed.”    Rob


“First time I had this, I didn’t feel ANY energy at all. I even felt sleepy at the end of my workout, that’s how bad it is.”    Rafael


“I started my work out after the 30 minutes, which just includes jogging on the treadmill for half an hour, well ten minutes into my workout I was winded. That has never happened before. My stomach started growling too. I felt like I was starving, when I had just eaten an hour before hand. Needless to say this powder gave me the munchies.”    Antique


“Today, I took 3/4 of the drink and saved the rest for later but just 20min later I had to move my bowels (went 3 times within an hour!) and began itching all over and it felt like something was pricking me. I made myself vomit to get it out of my system faster.”   Oscar


“I get absolutely zero boost from this and, though I have no allergies, this stuff had my face, neck, and ears itching like mad.”    Bettina


“This made me violently ill. Took half a scoop to start and was sick in bed for two days after.”   Jake


If you’re not comfortable with a Cellucor C4 side effect you’ve experienced, you may want to try a product with no caffeine-based ingredients like Pronabolin. Want to learn more? Click above.

Cellucor C4 Ingredients and Supplement Facts

Serving Size: 1 scoop
Serving Per Container: 60
Amount per Serving % DV
Beta Alanine 1500 mg *
Creatine Nitrate 1000 mg *
Arginine AKG 1000 mg *
Explosive Energy Blend 266 mg *
Caffeine Anhydrous 100 mg *
N-Acetyl-L-Tyrosine * *
Mucana pruriens * *
Xanthinol nicotinate * *
1,3-Dimethylamylamine HCI * *
Rauwolscine * *
Folate * *
Pydridoxine Phosphate * *
Vitamin B12 * *

Other Ingredients: Natural and artificial flavors, silicon dioxide, citric acid, artificial color, dextrose, fd&c yellow #6, tricalcium phosphate, sucralose and acesulfame potassium.

We researched Cellucor C4 ingredients in order to give you the facts you want.

Beta Alanine

Beta alanine is an amino acid. It is not found in foods and instead is naturally made in the body. However, it can be created synthetically and put into diet supplements.

What Is It Supposed To Do?

Beta alanine naturally affects muscle in the body. When found in a supplement, companies claim it can improve athletic performance and increase exercise capacity.

Clinical Research

According to a study published in Journal of Strength and Conditioning Research/National Strength and Conditioning Association, “β-Alanine appears to have the ability to augment performance and stimulate lean mass accrual in a short amount of time (8 weeks) in previously trained athletes.” Although athletes gained lean mass, there were no reports of weight-loss.

If you are looking to try a weight-loss supplement, you may want to check out Pronabolin. It’s packed with clinically tested ingredients and supported by some amazing reviews.

Creatine Nitrate

Creatine nitrate is a more water-soluble version of creatine.

What Is It Supposed To Do?

Companies that sell creatine nitrate claim that it can improve athletic performance and energy.

Clinical Research

Very little research has been done on creatine nitrate. However, one study, published in the Journal of the International Society of Sports Nutrition, tested its long term effects, concluding, “Otherwise, all hematological safety markers remained within normal range, suggesting that CN supplementation has no adverse effects in daily doses up to 2 g over 28 days and may be an alternative to creatine monohydrate supplementation.”

N-Acetyl L-Tyrosine

N-acetyl l-tyrosine, also called tyrosine, is an amino acid that can be found in foods like meat, eggs, nuts, beans, oats, and wheat.

What Is It Supposed To Do?

Tyrosine is thought to help improve mental alertness.

Clinical Research

According to a study published in the International Journal of Obesity, “The bioactive supplement increased 4-h thermogenesis by 90 kJ more than placebo, and the effect was maintained after 8 weeks and accompanied by a slight reduction in fat mass. These bioactive components may support weight maintenance after a hypocaloric diet.” This bioactive supplement contained tyrosine, capsaicin, catechins, and caffeine.


Caffeine is a bitter stimulant found in tea, soda, and coffee.

What Is It Supposed To Do?

Caffeine can boost mental alertness and energy. However, if too much is consumed, it can cause negative side effects.

Clinical Research

According to a study published in Medicine and Science in Sports Exercise, “The additional 22% reduction in body weight, 25% reduction in epididymal fat-cell size, and 5 and 6% reductions in epididymal and retroperitoneal fat-pad weights, respectively, in the caf-ex group beyond the no caf-ex group support the hypothesis that fat loss with aerobic exercise can be increased when caffeine is ingested prior to the training sessions.” However, Cellucor C4 may not contain enough caffeine to warrant these effects.

Is There Anything Out There That TRULY Works?

Pronabolin is a dietary supplement that contains nine clinically-tested ingredients. Right now, the makers are offering multiple-bottle discounts and a 120-day money-back guarantee for all new customers. With positive user reviews, reliable science, and no harmful side effects, we think this may be the one for you. Click above to learn more.

Learn More About Pronabolin »
Dietspotlight Author
About the Author:

Summer Banks, a content strategist at Leptigen, has researched over 5000 products in the past 10 years. She has years of nursing training, experience as a manager responsible for 15 supplement brands, and completed coursework on Food and Nutrition from Stanford University. full bio.

Rating: 2.3. From 46 votes.
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User Comments

53 Comments on "Cellucor C4 Review"


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I’ve taken C4 for 3 days now and I can feel a big difference. I work out and I sweat allot. I play football. I’m small but big but I wanna get want to get bigger. How long do you have to take C4 until you can see a difference in your body?

Hello. All users are different and can experience different weight-loss results, but exercise in conjunction with a healthy diet and supplements have shown to help with weight-loss.


Take two scoops if you want to punch yourself in the face and run around in circles. 😅

Zia khan

After using one scoop, I feel like needles pinning all over my body. Y is that?? Harmful or not??


This is the first time Ive used this product and I felt the bad side effect an hour into my boxing workout. Nausea and jitters. It lasted for about 4-5 hours after my workout. Should I discontinue my use ?


Hello Sajid. All users are different and can experience different side effects; please make sure to consult with your physician and let them know about the side effects you were experiencing.


I have been using this product for about 3 months. Gives me that extra energy to workout after work. Side effects I’ve experienced: Headache, Nausea, lightheadedness, heart palpitations.


Hi i have been taking these for past 5 days but im not experiencing any explosive energy …and i do lift the same weights and the same rep .I correctly take this 20-30 mins before my workout . Why is not working ?

Hello. All users are different and can experience different weight-loss results.


I m just new to gym ….I m 18 year old boy …should I use this or not…before my workouts

Your Name

Im 16 and c4 helps me very good it increases my strength im very focus and My energy level is beyond what i thought it was try it

C4 is not suggested for use by anyone 16 years of age. You may want to talk with your doctor before you continue to take this.

Hi! Please make sure to consult with your physician before starting a new weight-loss program or product.


Does C4 contain BCAA which is Branch-Cain Amino Acids

Cal calington



Hi Halk! For detailed product and ingredient information, please refer to the Cellucor C4 official website to learn more.


I bought C4 today at my gym, I think I did a little bit more scoop then I was supposed to but it really worked. Was doing back and shoulder for 2 & half hours usually I’ll last for an hour and half. Felt great but since I think I went a little bit much with the scoop I got a little bit itchier then usual and a some tingling sensation but that’s about it besides that, taste I guess could be better but really works for me at least.


I love this product.. the taste not so great lol but worth it for the intense workout I get in the morning.


why is it that I experience itchiness on my entire body after 20 min of using should I not take it anymore.


shared this experience, came and went numerous times through the day

Jose A.

It has a stim effect to it your supposed to feel that you will feel it less if your actually working out hard


I also experienced itching over my face when taking this – I didn’t realise at first because I thought it was just sweat prickles but it’s definitely an allergic reaction. I’m trying to identify the allergen


It is not an allergic reaction. It’s your body’s natural response to higher than normal levels of beta alanine. Besides the itching, it is harmless.

Thank you for your input on this reaction, but if there is any potential for an allergic reaction we think it best to talk with a doctor.

Your Name

Beta alanine does it
Tell us your thoughts about Cellucor C4.

Hi. Please make sure to consult with your physician before continuing to take this product and let them know about the side effects you were experiencing.

Cal calington

C4 has a major effect on anyones work out and anyone who says otherwise is a lier. It gives you a warm feeling then a boost in heart rate a bit and blood flow. You can run further and lift heavier with this stuff. I usually run 5 miles. I can run 8 and a half with c4. 10 sets become 15. This stuff works.now the lught headed stuff is true and the naseaous feeling also sometimes. Still it works and those people saying it dont are liers are people who drink 6 cups of coffee a day. Yeah its not gonna work if your already swallowing a gallon of caffine a day.


Took this 2 times, first time I had a massive headache… Second time I had an even more massive headache that lasted 3 days and I actually still feel it, make sure you do your research on this supplement as it is doing many things it doesn’t really make clear, I was mislead with this and now I probably have brain damage because of the ingredients they include in this garbage.

I wouldn’t advise this supplement one bit, synephrine with mass gainers, more b12 with isolates? Niacinamide with Synephrine could also put an excessive amount of CO2 into your brain with increased PH, this product is awful.


Same I had violent headaches for days on end form taking C4 Cellucor


I am a 53 year old woman and I just started going to the gym. C4 has made a big difference! I am over weight so I thought working out was going to kill me . C4 gives me that extra little something that makes me feel like I am actually getting in a productive workout! Love this stuff!


I like C4… I been using it for a year now. I use it for my circuit training and regular workouts and I get a lot of energy and strength. It helped me stay motivated. I use to be 198 and I’m down to 145. I also use it when I’m tired and need energy to focus on my school assignments.. It wakes me up and keeps me focused.


I’ve not experienced any jitters or ill effects due to the caffeine, but I have found that it works very well with me. I’ve just used it this week alone, and my performance is 50% better. I can breathe better during the workout, my endurance has improved and I feel really good after the workout. It’s been so long since i’ve had muscle soreness due to harder efforts, which I have now. I wanted to better understand what ingredients are in the C4. I am more concerned with how long will this product really last, or is this just working because it’s new to my system. How will it work over a period of time, and if it will cause damage to my body over long term use. Is there any ingredient in this product that will be harmful over longterm use? Do you have any idea where I can find these answers.


It is boosting my energy .. I can feel it but don’t know why I hav been hAving headache after workout …I feel like a heavy weight is in my head ….should I continue it or leave it??? I just started taking it for 3 days n since de 1st day itself I m having headache???? What should I do?????


you need to hydrate yourself bro

Hello Samy. All users are different and can experience different results; please make sure to consult with your physician before continuing this product to make sure its safe and effective for you to use.


bro u r sayng this only to all consult with ur physician … really they dnt knw wt to do next … say them any outher things on the place of ur same words for all okey

John doe

c4 is a great product for gym use work use and sports use in the gym after taking it for about 9 days my pumps at the gym were unreal better than I have ever had with any other product I don’t know why everybody is complaining about the taste it’s actually better than most I’ve had alot of good flavors to choose from be sure to drink plenty of water as you take this as well


I use it because it is one that actually tastes good! Strawberry Margaritta is great.


Please can you tell me C4 pre-workout help for weight loose?

Cal calington

Yes it does. It allows you to do more and have the energy to do so. Therfore it helps to lose weight if you go to the gym and go hard. Like anything else it only works if you work out hard.

Candace (Editor)

This product is a muscle boosting supplement meaning it’s designed to increase muscle not reduce weight.


After having 3 days ,i felt no pump..my nutrition expert said take 2 scoop…n after taking 2 scoops for 2 days, i felt high voltage headache…i thought its might be by so much crowd in the gym..and next 2 days again same story
Happened, i was shocked…now i stop the c4…can anyone reveal the reason behind??? thanks

Devon (Editor)

Some dieters experienced the same. The only thing you can hope for is if 1). your body accustoms itself to the formula, 2). you reduce your dosage until the effects subside or 3). continue to exercise to increase healthy blood follow.

Cal calington

Or maybe tell him read the huge warning label that says only take 1 scoop

Bert de Guzman

In my first used this c4 pre workout i drink full scoop & in the miidde of my workout i feel headache and i decided to stop because this is not normal to me. Can you give me some recommendation or either suggestion on how to use it for the first timer? But i like this stuff..

Stephen (Editor)

Bert, the company recommends taking one serving with 4 to 6 ounces of water 20 to 30 minutes before a workout. After finding the amount that suits you, you may add scoops. Do not exceed two servings in a 24-hour period.

Cal calington

Finally a editor that actually reads the c4 label