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Cellucor C4 Sport Pre Workout Powder - Preworkout Energy with Creatine, Beta-Alanine, and 135mg Caffeine - NSF Certified for Sport - Blue Raspberry supplement bottle
Cellucor

C4 Sport Pre Workout Powder - Preworkout Energy with Creatine, Beta-Alanine, and 135mg Caffeine - NSF Certified for Sport - Blue Raspberry Review

What We Researched
· 10 inactive ingredients decoded · 5 brand certifications checked · Page generated: Sep 2026
78
Product Score Fair
81
Brand Score Good

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Fair

Supplement Facts

No supplement facts data available.

Bioavailability N/A

Absorption Rating

No ingredient forms matched our reference database.

Other Ingredients Excellent

Fillers & Additives

  • Citric Acid
  • Natural and Artificial Flavors
  • Sodium Citrate
  • Silicon Dioxide
  • Calcium Silicate
  • Magnesium Chloride
  • Sucralose
  • Polydextrose
  • Dipotassium Phosphate
  • Acesulfame Potassium
Efficacy N/A

Dosage Analysis

Dosage data not available for assessment.

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Citric Acid Safe

Adds tartness and acts as a natural preservative. Also aids in ingredient stability.

Natural and Artificial Flavors Generally_safe

It is used to improve the taste of the product.

Sodium Citrate Safe

Stabilizes pH and helps maintain ingredient effectiveness.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Calcium Silicate Safe

Prevents ingredient clumping during manufacturing.

Magnesium Chloride Generally_safe

It is used as a source of magnesium.

Sucralose Generally_safe

Adds sweetness to chewables, gummies, and powdered supplements without calories.

Polydextrose Generally_safe

It is used as a filler, to add bulk, and as a prebiotic fiber.

Dipotassium Phosphate Generally_safe

It is used to maintain the pH of supplements.

Acesulfame Potassium Generally_safe

It is used to provide sweetness without adding calories.

Brand Trust Report
Cellucor

Founded 2002 · Austin, Texas, United States · 349 products · cellucor.com/

Certifications

5 certifications
Nsf Certified For Sport Source available Primary evidence
Nsf Gmp Source available Primary evidence
NSF Certified for Sport Supporting evidence unavailable
NSF Contents Certified Supporting evidence unavailable
NSF Certified Supporting evidence unavailable

Transparency

3 claims
Third Party Testing Claim — Verified Evidence available Evidence
Testing Lab Disclosure — Verified Evidence available Evidence

Violation History

5 incidents
Lawsuit False advertising of XTEND workout powders as having '0 calories'.2023 Source available Primary source
Prop 65 Lead and Cadmium2018-01-23 Source available Primary source
Lawsuit Deceptive packaging and slack-fill of Cellucor C4 Pre-Workout powders.2018 Source available Primary source
Lawsuit False marketing claims regarding the performance-enhancing benefits of various Cellucor supplements.2016 Source available Primary source
Lawsuit Deceptive advertising of C4 Extreme as a 'dietary supplement' while containing the ingredient DMAA.2012 Source available Primary source
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Frequently Asked Questions
Is Cellucor C4 Sport Pre Workout Powder - Preworkout Energy with Creatine, Beta-Alanine a good supplement?

Cellucor C4 Sport Pre Workout Powder - Preworkout Energy with Creatine, Beta-Alanine, and 135mg Caffeine - NSF Certified for Sport - Blue Raspberry received a product quality score of 78/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. All 10 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Cellucor, holds a brand trust score of 81/100.

Is Cellucor C4 Sport Pre Workout Powder - Preworkout Energy with Creatine, Beta-Alanine safe to take?

GoodSupp reviewed the inactive-ingredient data available for Cellucor C4 Sport Pre Workout Powder - Preworkout Energy with Creatine, Beta-Alanine, and 135mg Caffeine - NSF Certified for Sport - Blue Raspberry. All 10 inactive ingredients — including capsule materials, fillers, and binders — are currently classified as safe in GoodSupp's ingredient reference data. This label analysis cannot determine whether the product is safe for a particular person, and source labels may change. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Cellucor a trustworthy supplement brand?

Cellucor receives a brand trust score of 81/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2002 and headquartered in Austin, Texas, United States, the company offers 349 products in their lineup. Note: Cellucor has 5 historical regulatory incidents on record, which are factored into the trust score.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records — read our methodology. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.