C4 Extreme Energy At a Glance

C4 Extreme Energy is a pre-workout supplement manufactured by Cellucor. Its overall effectiveness rating is a 1.69 out of 3 meaning that some, but not all, of the ingredients in this product have evidence of providing positive results. This product is a mix of high and low quality ingredients that should lead to some benefits.

  • Product Name: C4 Extreme Energy
  • Manufacturer: Cellucor
  • Supplement Category: Pre-Workout Supplements
  • Ranking within all Supplements: 301 out of 400 (bottom third of all products)
  • Ranking within Pre-Workout Supplements: 162 out of 214 (bottom third within category)
  • Number of Ingredients: 16
  • Effectiveness Rating: 1.69 out of 3
  • Amount of Research Rating: 32.438 (above 60 indicates sufficient research)
  • Nutrition Label Transparency Score: 69%
  • Serving Size: 1 scoop (8.500g)

C4 Extreme Energy Overview

Effectiveness Rating: C4 Extreme Energy contains 16 ingredients. Out of those, 14 are included in The Supplement Database. Their effectiveness ratings have been combined to give an overall effectiveness rating for the entire product. C4 Extreme Energy's overall effectiveness rating is a 1.69 out of 3.

This rating means that some, but not all, of the ingredients in this product have evidence of providing positive results. This product is a mix of high and low quality ingredients that should lead to some positive results.

Amount of Research Rating: This rating is a measure of how much research has been conducted on a product's ingredient lineup. A product can have a very high effectiveness rating but have a very low amount of research to back up that high rating.

Ideally, you should find products that only include ingredients that have been thoroughly researched. Amount of research ratings above 60 is sufficient, above 80 is much better. A rating lower than 60 means the ingredients in a product have not been thoroughly researched and the manufacturer does not have a great reason to use the ingredients they used.

The amount of research rating (confidence rating) for C4 Extreme Energy is 32.438.

Effective vs Ineffective Ingredients: The graph below illustrates the makeup of C4 Extreme Energy's ingredients. Green represents effective ingredients, yellow represents moderately effective ingredients, red represents ineffective ingredients. The more green and yellow, the better.

This product contains 2 extremely effective ingredients, 8 moderately effective ingredients, 4 ineffective ingredients, and 2 ungraded ingredients. Ingredients that are not found in the supplement database are ungraded and are not factored into the overall effectiveness rating for the product. The ungraded ingredients are listed below.

What is C4 Extreme Energy good at?

C4 Extreme Energy is extremely effective at:

  • increase concentration
  • improve high-intensity interval training (HIIT) performance
  • reduce frequency of the common cold
  • increase alertness

C4 Extreme Energy is moderately effective at:

  • improve memory
  • improve sports performance
  • improve running performance
  • increase fat burning
  • lower LDL (bad) cholesterol levels
  • improve rowing performance
  • improve swimming performance
  • improve focus
  • improve cognitive ability
  • decrease fatigue
  • improve cycling performance
  • improve muscular endurance
  • improve cycling sprint performance
  • improve sprint performance

C4 Extreme Energy is ineffective at:

  • reduce muscle damage
  • decrease body fat
  • increase strength
  • reduce muscle soreness
  • increase muscle mass
  • improve recovery
  • improve mood
  • reduce severity of the common cold
  • reduce duration of the common cold
  • improve immune function
  • increase HDL (good) cholesterol levels
  • increase pump (muscle swelling)
  • improve insulin sensitivity
  • improve cardiovascular endurance
  • improve agility

Individual Ingredient Ratings

The table below lists the rated ingredients included in C4 Extreme Energy along with their effectiveness ratings. Click the ingredient for more information on what it is and isn't capable of.

Ingredient Effectiveness Rating
Vitamin C (as Ascorbic Acid) 250mg 1.3 out of 3
Niacin (as Niacinamide) 60mg 1 out of 3
Vitamin B6 (as Pyridoxal-5-Phosphate) 1mg 1.5 out of 3
Folic Acid 500mcg 3 out of 3
Vitamin B12 (as Methylcobalamin) 70mcg 1 out of 3
Calcium (as Calcium Silicate) 20mg 1.5 out of 3
Potassium 100mg 1.5 out of 3
Beta-Alanine 3.2g 2 out of 3
Creatine Nitrate 1g 1.5 out of 3
Citrulline Malate 1g 1.6 out of 3
N-Acetyl-L-Tyrosine Amount not listed. 1.3 out of 3
Caffeine Anhydrous 300mg 2 out of 3
Theacrine Amount not listed. 1.8 out of 3
Huperzine A Amount not listed. 2.7 out of 3
Overall Effectiveness Rating for C4 Extreme Energy 1.69 out of 3

Ingredients not included in this analysis. The following C4 Extreme Energy ingredients are not in the Supplement Database. These ingredients' effectiveness was not taken into consideration in the overall effectiveness rating for the product: Velvet Bean Seed Extract, Rauwolfia Vomitoria Root Bark Extract.

Nutrition Label and Ingredient Transparency

C4 Extreme Energy by Cellucor Product Label

C4 Extreme Energy lists the amount of 69% of its ingredients. It contains 16 ingredients. Out of those, 11 are listed with amounts while 5 are listed without amounts. The chart below illustrates how many ingredients in C4 Extreme Energy are listed with amounts. Green represents ingredients with amounts while red represents ingredients without amounts. The more green, the better.

Many supplement manufacturers hide the amount of a certain ingredient under the guise of a great sounding proprietary blend such as "Maximum Muscular Size Enhancer" or "Anabolic Cell Strength Matrix."

The amount of each individual ingredient included is hidden from the label making it impossible to know what's actually in the product you're using. Companies have the ability to mix costly and effective ingredients with cheap and ineffective ingredients making it difficult to tell which one is actually in a product.

Products with high percentages of ingredients without amounts are hiding the true nature of their effectiveness. Ideally, a product should list amounts of 100% of the ingredients they are using.

C4 Extreme Energy vs the Compeitition

C4 Extreme Energy ranks 162 out of 214 in the Pre-Workout Supplements category. The table below lists the top five supplements within the category. Click on a link below for an in-depth comparison between the two products.

Rank Product Name
1 C4 Extreme Energy vs Awesome Pump
2 C4 Extreme Energy vs Send !t
3 C4 Extreme Energy vs Embrace the Suck
4 C4 Extreme Energy vs CelluVOL
5 C4 Extreme Energy vs Noxious

The Bottom Line

The Effectiveness Rating describes how well C4 Extreme Energy works based on the individual supplements it contains. The Ingredient Rating describes how many of the ingredients are rated as effective or moderately effective. The Nutrition Label Transparency describes the percentage of ingredients listed with amounts on the nutrition label.

Effectiveness Rating
Ingredient Rating
Nutrition Label Transparency