C4 Ultimate Shred Review

C4 Ultimate Shred Review – Get The Ultimate Shred!

C4 Ultimate Shred Review – Product Overview

C4 made by Cellucor has become the best selling and one of the most well-known brands in the world when it comes to pre workout supplements.  This C4 Ultimate Shred review is for their best fat burning, thermogenic pre workout.

Pre workout supplements are known to provide the best weight loss results, but C4 Ultimate Shred takes this to another level.  Get lean, pumped, and strong at the same time.
First, I’ll do a thorough review and taste with C4 Ultimate Shred and go over all of the great C4 ingredients.  Near the end, I’ll introduce you to a few other intense pre workout products in the C4 family.

What's the best pre workout drink - C4 Ultimate Shred pre workout

Product:   C4 Ultimate Shred Pre Workout
Price:      $$$
Where to Purchase:   CHECK CURRENT PRICE
Container size:  20 servings
Caffeine Per Serving:  300mg
Rating:   9.1 out of 10
Guarantee:  30 day satisfaction guarantee
Pros:    300mg of Caffeine. 6 grams of Citrulline Malate, Beta-Alanine, and more thermogenic ingredients than any other.
Cons:   Costs more than average.  Natural and artificial flavors.  Strong!

C4 Ultimate Shred Pre Workout Review

c4 ultimate shred review - raspberries

I decided to try the Icy Blue Razz flavor because it sounded cool and refreshing.  I’m guessing that Ultimate Shred is the strongest pre workout in the C4 line.  Because of this, I started with no more than a level scoop for my first time.


It is highly recommended to start out slow, especially when trying a new workout.  Otherwise, pre workout can give you negative effects like jitters, nausea, or headaches.


The Blue Razz had the typical potent pre workout flavor that I’m accustomed to. What I liked about it is that it was not overly sweet or “Raspberry” flavored. It mixed well a had a glowing blue color.

It didn’t have any unusual aftertaste except just that little pre workout bite.  If my first scoop goes well today, I usually up the serving and mix it a little stronger next time.

Leg Day

By the time I arrived at the gym, the first part of my pre workout was starting to kick in. Today is leg day, which I highly recommend using a pre workout for, since it is the largest muscle group. I warmed up for about 10 minutes and by this time I could feel a bit of a head tingle, my heart beating faster and motivation kicking in from the Caffeine.  I was ready to go.

On leg day I tend to supersets and jump back and forth between leg exercises, so it can be a brutal workout.  Sometimes I start out with deadlifts since they are the most difficult for me and I want to get it out of the way.

It Works!

c4 ultimate shred review - animated muscle man

I could tell that my C4 Ultimate Shred was working because my recovery time between sets was short.  In other words, my leg muscles quickly recharged to 100% between exercises.

Ultimate Shred is packed with 300mg of Caffeine, and I could feel it.  I used every bit of it on the leg machine.  Once again, I was ready to perform another set every 90 seconds or so, and still no muscle fatigue.

I’m not saying that this turned me into some kind of superman, but a good pre workout will give you more strength.  The strength and performance are coming from the chemical processes that are happening because of the Amino Acids.

Eventually, I got on the treadmill to cool down, pre workout still in effect.  It had gotten me through the workout with ease.  Now it’s time to head home to “recover” with my Post Workout Protein Shake.

From what I’ve seen so far, in this C4 Ultimate Shred review, I’m giving this pre workout a thumbs up.


C4 Ultimate Shred Ingredients

c4 ultimate shred review

Caffeine Anhydrous:

300mg of rip-roaring energy.  Twice as much as C4 Original.  If you are the least bit Caffeine intolerant, this is not recommended for you.  Caffeine is the best legal stimulant that you can use for sports.

Not only does it bring energy, but it also motivates, brings mental alertness, improves reaction time, and helps to maintain focus.  It all so has thermogenic properties that burn calories faster to help with your cut.

6g Citrulline Malate:

  L-Citrulline synthesizes into nitric oxide.  This is a powerful enough dose to bring vascularization which intern, brings more nutrients and oxygen to your muscles. This amino acid is what gives you “the pump” feeling.

3.2g of CarnoSyn Beta-Alanine:

  Beta-alanine is another amino acid that is clinically shown to bring you longer muscle endurance during exercise.

Capsimax Cayenne Extract: 

Cayenne is a well known hot pepper extract that has thermogenic effects to burn fat for energy production while conserving carbohydrates.   This extract will help you burn as many calories as you can by running.

c4 ultimate shred review


  This is a natural weight-loss ingredient that comes from the extract of the Dichrostachys Glomerata fruit.


An extract from the lychee fruit and green tea.  This has been shown to breakdown fat through thermogenesis.  It also supports nitric oxide production.


Is basically black pepper extract that will enhance the effects of the other supplements.


Just like it sounds, this ingredient comes from ginger root extract and this supports digestive health and wellness.

Amino Acid and Muscle Growth - creatine powder scoop

Betaine Anhydrous:

This ingredient helps maintain the electrolytes to help support with hydration.


Helps maintain and increase L-arginine and nitric oxide levels throughout your workout period.


This is becoming a well-known source of Caffeine. It comes naturally from the tea leaf, and can be better than Caffeine since the body does not adapt a tolerance to it as easily.

A-GPC, Zembrin, and Huperzine A:

These ingredients I have personally never heard of before, but they are included to support cognitive function and concentration.


C4 Ultimate Shred Customer Reviews

C4 Ultimate Shred is a super popular product and evidence of this is its great customer ratings. Below is a screenshot of one of those reviews from a verified purchaser.  My favorite supplement website has almost 300 reviews with an average rating of 9.3 out of 10.  You can click on the image to see more verified customer reviews.

C4 Ultimate Shred Review - amazon customer review

C4 Ultimate Shred Review - c4 shakerC4 “Original” Pre Workout

C4 original is Cellucor’s first and best-selling pre workout. This is the old workhorse standby.  It comes with 150mg of Caffeine plus Teacrine (a caffeine supplement).

It has an excellent mix of the key amino acids to give that pump and enhanced performance. The price is also a little less than Ultimate.  See more information here for C4 Pre Workout Ingredients.

If you are slightly intolerant to Caffeine, this may be a better option for you.  If you are into great tasting pre workouts, the Original also comes in several flavors.  See my review on C4 Original Pre Workout Here.


c4 ultimate shred reviewC4 Energy Drink

The C4 energy drink ingredients are very similar to the C4 powders.  This drink is made for “On The Go” when you don’t have time to mix your pre workout.  This pre workout drink is also packed with Caffeine and Amino Acids.

The only drawback to C4 pre workout drink is that the strength and flavor cannot be adjusted like you can with the powder form.
There is also a foolproof option to keep your shaker and C4 powder in the car to mix it at the gym for a different kind of on the go.  But keep in mind that it will take your pre workout 30 minutes to kick in, so try and think ahead.  See my review on C4 Pre Workout Drink or CHECK PRICING HERE.

C4 “Ultimate” Pre Workout

C4 Ultimate Pre Workout Review - Ultimate Pre Workout

The difference between the C4 Ultimate and the Ultimate Shred is mainly in the thermogenic properties contained in Shred.  These additives are a great idea, putting these in a pre workout for fat burning.

However, thermogenic properties such as cayenne pepper and ginger extracts do not always agree with people. These weight burning ingredients can cause jitters and sleepless nights.

So if you are looking for that large Caffeine rush along with the jacked-up amount of Amino Acids without the fat burning ingredients, regular C4 Ultimate pre workout is for you.


The Ultimate Conclusion

C4 Energy Drink Reviews - me holding c4 on the go

My test run with C4 Ultimate Shred provided me with a better than usual intense workout.  I have been impressed with many other C4 products, but have never gotten a chance to try this one.

“Shred” gave me more than enough energy, and I could feel my muscles pumping as they should.
I didn’t show muscle fatigue throughout my workout and was good to go until the end.  So all in all, I would rate this is one of the best pre workouts that I have had and would feel confident in recommending it to you.

C4 Ultimate Shred is loaded with Caffeine, amino acids, and thermogenic ingredients.  Get in shape while toning up.  These ingredients are aimed at getting ripped and burning calories as much as they are for performance, strength, energy and muscle development.

If you have any questions or comments regarding this C4 Ultimate Shred review, please leave a message below and I will respond.


C4 Ultimate Pre Workout













  • Intense workout, great pump
  • Lasted through my workout and beyond
  • Great value for such a well-rounded pre workout
  • Thermogenic ingredients for calorie burn
  • Plenty of Caffeine


  • 300mg of Caffeine may be too strong for some
  • Limited amount of flavors
  • Highest cost in the C4 line

About the author, Steve Hall

I've been training since I was a teenager and started this site to help others get the most out of their workouts. I look forward to sharing a ton of useful information about this awesome topic.