C4 / Cellucor C4 Ultimate Shred, Pre-Workout, Pink Lemonade, 14.3 oz (406 g) supplement bottle
C4 / Cellucor

C4 Ultimate Shred, Pre-Workout, Pink Lemonade, 14.3 oz (406 g)

What We Researched
16 active ingredients analyzed · 9 inactive ingredients decoded · 3 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
83
Product Score Good
78
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin B6 (as Pyridoxal-5-Phosphate) 3.4 mg 200%
Folate (as 6S-5-Methyltetrahydrofolate calcium salt) 100 mcg DFE 25%
Vitamin B12 (as Methylcobalamin) 6 mcg 250%
Calcium 75mg 6%
Phosphorus (as Dipotassium Phosphate) 75mg 6%
Magnesium (as Magnesium Citrate) 20 mg 5%
Chloride (from Sea Salt) 340 mg 15%
Sodium (from Sea Salt) 225 mg 10%
Potassium (as Dipotassium Phosphate) 190 mg 4%
Endurance & Performance ComplexCarnoSyn® Beta-AlanineVelox® Patented Performance BlendL-CitrullineL-ArginineBetaPower® Betaine AnhydrousPeptiPump® Bioactive Lentil Peptides 10.65 g3.2 g3 g3 g1.25 g200 mg †
Ultimate Energy, Focus & Stimulant MatrixL-TyrosineCaffeine AnhydrousDynamine™ (as Methylliberine)TeaCrine® (as Theacrine)Toothed Clubmoss (Huperzia serrata) aerial parts extract(std. 1% Huperzine A)Rauwolfia vomitoria root bark extract 1.366 g1 g300 mg50 mg10 mg5 mg1 mg †
Enhanced Fat Burning MatrixMitoBurn® Beta-Aminoisobutyric Acid (BAIBA)Oligonol® Lychee fruit extract and Green Tea leaf extractCaloriBurn® Grains of Paradise (Aframomum melegueta)seed extractCayenne (Capsicum annuum) fruit extract (std. 5%Capsaicinoids) 410 mg250 mg100 mg40 mg20 mg †
Bioavailability Excellent

Absorption Rating

  • Vitamin B6 (as Pyridoxal-5-Phosphate) Good
  • Folate (as 6S-5-Methyltetrahydrofolate calcium salt) Good
  • Vitamin B12 (as Methylcobalamin) Good
  • Calcium Good
  • Phosphorus (as Dipotassium Phosphate) Good
  • Magnesium (as Magnesium Citrate) Good
  • Chloride (from Sea Salt) Good
  • Sodium (from Sea Salt) Good
  • Potassium (as Dipotassium Phosphate) Good
  • Endurance & Performance ComplexCarnoSyn® Beta-AlanineVelox® Patented Performance BlendL-CitrullineL-ArginineBetaPower® Betaine AnhydrousPeptiPump® Bioactive Lentil Peptides Good
  • Ultimate Energy, Focus & Stimulant MatrixL-TyrosineCaffeine AnhydrousDynamine™ (as Methylliberine)TeaCrine® (as Theacrine)Toothed Clubmoss (Huperzia serrata) aerial parts extract(std. 1% Huperzine A)Rauwolfia vomitoria root bark extract Good
  • Enhanced Fat Burning MatrixMitoBurn® Beta-Aminoisobutyric Acid (BAIBA)Oligonol® Lychee fruit extract and Green Tea leaf extractCaloriBurn® Grains of Paradise (Aframomum melegueta)seed extractCayenne (Capsicum annuum) fruit extract (std. 5%Capsaicinoids) Good
Other Ingredients Excellent

Fillers & Additives

  • Citric Acid
  • Natural & Artificial Flavors
  • Malic Acid
  • Calcium Silicate
  • Silicon Dioxide
  • Acesulfame Potassium
  • Sucralose
  • Vegetable Juice Powder (Color)
  • Beta-Carotene (Color)
Efficacy Poor

Dosage Analysis

  • Vitamin B6 (as Pyridoxal-5-Phosphate) 3.4 mg Effective
  • Folate (as 6S-5-Methyltetrahydrofolate calcium salt) 100 mcg DFE Under-dosed
  • Vitamin B12 (as Methylcobalamin) 6 mcg Effective
  • Calcium 75mg Under-dosed
  • Phosphorus (as Dipotassium Phosphate) 75mg Under-dosed
  • Magnesium (as Magnesium Citrate) 20 mg Under-dosed
  • Chloride (from Sea Salt) 340 mg Under-dosed
  • Sodium (from Sea Salt) 225 mg Under-dosed
  • Potassium (as Dipotassium Phosphate) 190 mg Under-dosed
  • Endurance & Performance ComplexCarnoSyn® Beta-AlanineVelox® Patented Performance BlendL-CitrullineL-ArginineBetaPower® Betaine AnhydrousPeptiPump® Bioactive Lentil Peptides 10.65 g3.2 g3 g3 g1.25 g200 mg Under-dosed
  • Ultimate Energy, Focus & Stimulant MatrixL-TyrosineCaffeine AnhydrousDynamine™ (as Methylliberine)TeaCrine® (as Theacrine)Toothed Clubmoss (Huperzia serrata) aerial parts extract(std. 1% Huperzine A)Rauwolfia vomitoria root bark extract 1.366 g1 g300 mg50 mg10 mg5 mg1 mg Effective
  • Enhanced Fat Burning MatrixMitoBurn® Beta-Aminoisobutyric Acid (BAIBA)Oligonol® Lychee fruit extract and Green Tea leaf extractCaloriBurn® Grains of Paradise (Aframomum melegueta)seed extractCayenne (Capsicum annuum) fruit extract (std. 5%Capsaicinoids) 410 mg250 mg100 mg40 mg20 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Calories 10
Total Carbohydrate 1g <1% **
Total Sugars 0g
Includes 0 g Added Sugars 0g 0% **
Vitamin B6 (as Pyridoxal-5-Phosphate) 3.4 mg 200%
Folate (as 6S-5-Methyltetrahydrofolate calcium salt) 100 mcg DFE 25%
Vitamin B12 (as Methylcobalamin) 6 mcg 250%
Calcium 75mg 6%
Phosphorus (as Dipotassium Phosphate) 75mg 6%
Magnesium (as Magnesium Citrate) 20 mg 5%
Chloride (from Sea Salt) 340 mg 15%
Sodium (from Sea Salt) 225 mg 10%
Potassium (as Dipotassium Phosphate) 190 mg 4%
Endurance & Performance ComplexCarnoSyn® Beta-AlanineVelox® Patented Performance BlendL-CitrullineL-ArginineBetaPower® Betaine AnhydrousPeptiPump® Bioactive Lentil Peptides 10.65 g3.2 g3 g3 g1.25 g200 mg †
Ultimate Energy, Focus & Stimulant MatrixL-TyrosineCaffeine AnhydrousDynamine™ (as Methylliberine)TeaCrine® (as Theacrine)Toothed Clubmoss (Huperzia serrata) aerial parts extract(std. 1% Huperzine A)Rauwolfia vomitoria root bark extract 1.366 g1 g300 mg50 mg10 mg5 mg1 mg †
Enhanced Fat Burning MatrixMitoBurn® Beta-Aminoisobutyric Acid (BAIBA)Oligonol® Lychee fruit extract and Green Tea leaf extractCaloriBurn® Grains of Paradise (Aframomum melegueta)seed extractCayenne (Capsicum annuum) fruit extract (std. 5%Capsaicinoids) 410 mg250 mg100 mg40 mg20 mg †

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 & Artificial Flavors Generally_safe

It is used to improve the taste of the product.

Malic Acid Safe

Adds tartness and enhances fruit flavors in gummies and chewables.

Calcium Silicate Safe

Prevents ingredient clumping during manufacturing.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

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.

Vegetable Juice Powder (Color) Safe

It is used to provide natural coloring.

Beta-Carotene (Color) Safe

It is used to add color to supplements.

Price Comparison

Target $41.99 $2.10 / serving
Best Price
iHerb $42.85 $2.14 / serving

Price History

Tracked across major retailers. Updated periodically.

$44$43$42$41$40 Mar 12 $42.00
iHerb

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
C4 / Cellucor

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

Certifications

3 certifications
Health Canada Licensed Verified Source
Nsf Certified For Sport Verified Source
Fda Gmp Inspections Verified Source

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.2023Source
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.2020Source
Prop 65 Lead, Cadmium2018-01-23Source
Lawsuit A lawsuit was filed against Nutrabolt for 'slack-fill' in its Cellucor C4 Pre-Workout powder containers, alleging the packaging was misleading.2018Source
Lawsuit A class-action lawsuit alleged false marketing claims regarding the efficacy of several Cellucor supplements.2016Source
Lawsuit A lawsuit was filed concerning the ingredient DMAA in C4 Extreme, alleging it was a synthetic drug and not a natural dietary supplement.2012Source
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Frequently Asked Questions
Is C4 / Cellucor C4 Ultimate Shred, Pre-Workout a good supplement?

C4 / Cellucor C4 Ultimate Shred, Pre-Workout, Pink Lemonade, 14.3 oz (406 g) received a product quality score of 83/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 16 active ingredients with 20 servings per container. Of the 9 inactive ingredients, 6 are rated safe and 0 are flagged for review. The manufacturer, C4 / Cellucor, holds a brand trust score of 78/100 with 3 verified certifications including Health Canada Licensed, Nsf Certified For Sport, Fda Gmp Inspections.

What are the ingredients in C4 / Cellucor C4 Ultimate Shred, Pre-Workout?

C4 / Cellucor C4 Ultimate Shred, Pre-Workout contains 16 active ingredients: Calories (10), Total Carbohydrate (1g), Total Sugars (0g), Includes 0 g Added Sugars (0g), Vitamin B6 (as Pyridoxal-5-Phosphate) (3.4 mg), Folate (as 6S-5-Methyltetrahydrofolate calcium salt) (100 mcg DFE), and 10 more. Notable high-dose ingredients include Vitamin B12 at 250% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is C4 / Cellucor C4 Ultimate Shred, Pre-Workout safe to take?

C4 / Cellucor C4 Ultimate Shred, Pre-Workout, Pink Lemonade, 14.3 oz (406 g) has been analyzed for ingredient safety across all its components. 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 78/100 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. They hold 3 verified certifications including Health Canada Licensed, Nsf Certified For Sport, Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. 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. 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.