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C4 / Cellucor C4 Sport®, Pre-Workout, Fruit Punch supplement bottle
C4 / Cellucor

C4 Sport®, Pre-Workout, Fruit Punch Review

What We Researched
· 10 inactive ingredients decoded · 3 brand certifications checked · Page generated: Sep 2026
73
Product Score Fair
79
Brand Score Fair

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

  • FD&C Red No. 40 Low
  • Acesulfame Potassium
  • Sucralose
  • Artificial Flavors
  • Polydextrose
  • Citric Acid
  • Calcium Silicate
  • Silica
  • Natural Color
  • Silicon Dioxide
Efficacy N/A

Dosage Analysis

Dosage data not available for assessment.

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

FD&C Red No. 40 Caution

It is used as a red colorant.

Acesulfame Potassium Generally_safe

It is used to provide sweetness without adding calories.

Sucralose Generally_safe

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

Artificial Flavors Generally_safe

Added to improve taste.

Polydextrose Generally_safe

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

Citric Acid Safe

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

Calcium Silicate Safe

Prevents ingredient clumping during manufacturing.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Natural Color Generally_safe

It is used to add color to supplements.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Brand Trust Report
C4 / Cellucor

Founded 2002 · Austin, Texas, USA · 60 products · cellucor.com/

Certifications

3 certifications
Health Canada Licensed Source available Primary evidence
Nsf Certified For Sport Source available Primary evidence
Fda Gmp Inspections Source available Primary evidence

Transparency

1 claim

Violation History

6 incidents
Lawsuit A $3 million class-action lawsuit against Nutrabolt regarding the caloric content of its XTEND workout powders was settled.2023 Source available Primary source
Lawsuit A lawsuit was filed alleging that Xtend BCAA supplements do not support muscle growth and recovery. This case was voluntarily dismissed. A separate lawsuit regarding the zero-calorie claims of XTEND powders was settled.2020 Source available Primary source
Prop 65 Lead, Cadmium2018-01-23 Source available Primary source
Lawsuit A lawsuit was filed against Nutrabolt for 'slack-fill' in its Cellucor C4 Pre-Workout powder containers, alleging the packaging was misleading.2018 Source available Primary source
Lawsuit A class-action lawsuit alleged false marketing claims regarding the efficacy of several Cellucor supplements.2016 Source available Primary source
Lawsuit A lawsuit was filed concerning the ingredient DMAA in C4 Extreme, alleging it was a synthetic drug and not a natural dietary supplement.2012 Source available Primary source
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Frequently Asked Questions
Is C4 / Cellucor C4 Sport®, Pre-Workout a good supplement?

C4 / Cellucor C4 Sport®, Pre-Workout, Fruit Punch received a product quality score of 73/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. with 30 servings per container. Of the 10 inactive ingredients, 9 are rated safe and 1 ingredient is flagged for review. The manufacturer, C4 / Cellucor, holds a brand trust score of 79/100.

Is C4 / Cellucor C4 Sport®, Pre-Workout safe to take?

GoodSupp reviewed the inactive-ingredient data available for C4 / Cellucor C4 Sport®, Pre-Workout, Fruit Punch. Of 10 inactive ingredients, 9 are rated safe. 1 ingredient is flagged for review: FD&C Red No. 40. 'Caution' doesn't mean dangerous — it indicates the ingredient has some considerations worth being aware of, such as potential sensitivities or ongoing research. 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 C4 / Cellucor a trustworthy supplement brand?

C4 / Cellucor receives a brand trust score of 79/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2002 and headquartered in Austin, Texas, USA, the company offers 60 products in their lineup. Note: C4 / Cellucor has 6 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.