Cellucor C4 Preworkout Review

Cellucor C4 Preworkout Review – Icy Blue Razz Flavour

Cellucor C4 Original pre-workout claims to promote energy, advanced endurance, focus and pumps.

According to Cellucor, it is America's top selling pre-workout. So does it live up to its solid reputation?

We've tried and tested Cellucor C4 pre-workout to find out if it really is as good as they say.

We've had a number of people test this pre-workout whilst doing their daily gym sessions to bring you an honest Cellucor C4 pre-workout review.

Each experience is different so let's find out if Cellucor C4 Original is a good pre-workout and see how it compares to the other top rated pre-workouts buyer's guide.

The flavour we tried was Icy Blue Razz. We hope this C4 pre workout review helps find a decent pre-workout that will work for you.


Cellucor C4 Pre Workout Rating

Cellucor C4 Pre-Workout Powder Review
  • Best Beginner PWO
  • High User Ratings
  • 160mg Caffeine
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    1.6g Beta-Alanine
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    1g Creatine
  • Best Beginner PWO
  • High User Ratings
  • 160mg Caffeine
  • check
    1.6g Beta-Alanine
  • check
    1g Creatine

Our Full Cellucor C4 Pre-Workout

As mentioned, our review consists of three separate reviews from Tubby Gorilla testers who will share their honest thoughts and feedback on the Cellucor C4 pre-workout. 

Straight off the bat, this is a great pre-workout for beginners, if you're looking for something with a powerful kick and huge pump, this probably isn't the PWO for you. 

However if you're looking for something to get you into using pre-workouts, or you're looking for a low caffeine pre-workout, or something to use in the evenings, this pre-workout is hard to beat.

If we were rating beginner pre-workouts, it's not a stretch to say this would score full marks. 

Overall Effectiveness

I did not feel an instant energy boost but by the time I got to the gym I was completely focused and alert, this pre-workout packs a punch.

It helped me to lift heavy weights (personal bests at the time) and I completed a long workout, without feeling completely drained afterwards.

This was my first time back at the gym after around 5 weeks off - normally after a break from working out I have to lower my weights a little.

I didn’t have to lower my weights at all, I lifted some weights I was lifting when I last went to the gym and in other places, I was lifting heavier!

“I normally train 2 hours after eating a meal with carbs, but today I trained on an empty stomach. I noticed no difference in my strength and stamina and I would have to say the PWO must have had an effect on that as it allowed me to complete my usual workout without feeling weak”
Luke, male reviewer. 5'11", 164lbs

I was completely focussed and engaged in lifting, I honestly felt great afterwards and did not experience a crash or any kind of shakes.

I didn’t feel exhausted after my workout either. With regular use, this could really help boost my workouts and help me to reach my targets. It does what it says on the tin!

I felt a slight pump from Cellucor, that could be to do with lifting more but I’m assuming it was the pre-workout.

Cellucor C4 Pre-Workout Review Ratings

Cellucor C4 Review





Energy and Focus

Considering the low amount of caffeine within the Cellucor C4, it does provide plenty of energy.

It might not provide the huge kick and boost that other pre-workouts do, but it isn't trying to do that. 

It's low-caffeine formula is a perfect addition to your workout to provide you with more energy throughout the workout rather than a huge buzz at the start of it. 

And we quite like that.

“I felt more focused and determined and was willing to try lifting more than usual, I felt it gave me the strength to be able to lift heavier weights”
Jordan, male reviewer. 5'9", 155lbs

If you're looking for something with 'insane energy', 'huge pump' and 'crazy focus' this isn't for you.

But again, this pre-workout isn't aiming to do those things. 

This is a perfect pre-workout for evening workouts, people with a lower caffeine tolerance and people with a smaller frame.

Taste and Mixibility

I personally really liked the taste of this Cellucor C4, it tasted sweet with a little sour twang which worked well together. It reminded me of something from my childhood.

Our other testers agreed that this is a good tasting pre-workout, both saying it tasted like a drink from years gone by.

Cellucor C4 mixed

The Cellucor C4 powder mixed really easily, leaving minimal residue. 

There were no lumps and the little bit of residue that was left didn’t really affect the texture. This is probably one of the best tasting pre-workouts I have tried so far, especially when considering the mixability and texture.

A lot of pre-workouts don't mix well and leave residue or lumps, so Cellucor has done a good job here.

Is the Cellucor C4 a Good Pre-Workout?

We all agreed that we definitely felt more energetic during our workouts. This pre-workout made us feel more alert and helped push us in our workouts.

We felt more focussed and motivated to carry on, it prolonged our workouts and helped some of us reach new personal bests. However, it did lack on the pumps, not one of us felt a real difference in terms of pumps.

Cellucor C4 meets most of its targets, just lacks in the pump area. In terms of aiding in a decent gym session, it helps improve performance and ability.

It is easy to see that with regular use this pre-workout will improve your overall ability and fitness levels, pushing you to the next level. It is obvious to see that it can push you out of a plateau and help reach targets.

As I've mentioned, if you're a beginner looking for a way into pre-workouts, give the C4 a try.


  • Beginner's choice
  • Definitely works
  • Lower caffeine option
  • check-circle
    Well price


  • Not suitable for those looking for an extreme pump
  • No energy boost

Side Effects

I didn't experience any serious or different side effects to what I've experienced before - I felt a tingle on my hands and ears.

That is just a temporary side effect from beta-alanine.

It feels a bit like pins and needles, it didn't affect my workout.

The tingle helped me to know when the pre workout had kicked in, it's nice to know when the supplement is kicking in.

Aside from the usual beta-alanine tingle, the other reviews stated they experienced no side effects either. 

If you'd like to read more about pre-workouts, or see how the PhD VMX2 ranked alongside the other top pre-workouts, check out our Definitive Buyers Guide to the Best Pre-Workouts

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