MusclePharm Assault® Preworkout, Watermelon, 12.1 oz (344 g) supplement bottle
MusclePharm

Assault® Preworkout, Watermelon, 12.1 oz (344 g)

What We Researched
12 active ingredients analyzed · 8 inactive ingredients decoded · 1 brand certification checked · 1 retailer compared · Last updated: Mar 2026
87
Product Score Good
75
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin C (as Ascorbic Acid) 300 mg 333%
Vitamin E (as d-Alpha Tocopheryl Acetate) 36 mg 240%
Vitamin B6 (as Pyridoxine HCl) 20 mg 1,176%
Vitamin B12 (as Methylcobalamin) 50 mcg 2,083%
Calcium (as Calcium Silicate) 40 mg 3%
Creatine Monohydrate (3 g) 3,000 mg
Beta-Alanine (1.75 g) 1,750 mg
Betaine Anhydrous (1.5 g) 1,500 mg
Taurine (1 g) 1,000 mg
L-Glycine (1 g) 1,000 mg
Caffeine Anhydrous 250 mg
Acetyl-L-Carnitine HCl 250 mg
Bioavailability Very Good

Absorption Rating

  • Vitamin C (as Ascorbic Acid) Fair
  • Vitamin E (as d-Alpha Tocopheryl Acetate) Good
  • Vitamin B6 (as Pyridoxine HCl) Fair
  • Vitamin B12 (as Methylcobalamin) Good
  • Calcium (as Calcium Silicate) Poor
  • Creatine Monohydrate (3 g) Good
  • Beta-Alanine (1.75 g) Good
  • Betaine Anhydrous (1.5 g) Good
  • Taurine (1 g) Good
  • L-Glycine (1 g) Good
  • Caffeine Anhydrous Good
  • Acetyl-L-Carnitine HCl Good
Other Ingredients Excellent

Fillers & Additives

  • Citric Acid
  • DL-Malic Acid
  • Natural & Artificial Flavors
  • Silica
  • Calcium Silicate
  • Sucralose
  • Beet Juice Powder (For Color)
  • Acesulfame Potassium
Efficacy Good

Dosage Analysis

  • Vitamin C (as Ascorbic Acid) 300 mg Effective
  • Vitamin E (as d-Alpha Tocopheryl Acetate) 36 mg Effective
  • Vitamin B6 (as Pyridoxine HCl) 20 mg Effective
  • Vitamin B12 (as Methylcobalamin) 50 mcg Effective
  • Calcium (as Calcium Silicate) 40 mg Under-dosed
  • Creatine Monohydrate (3 g) 3,000 mg Effective
  • Beta-Alanine (1.75 g) 1,750 mg Under-dosed
  • Betaine Anhydrous (1.5 g) 1,500 mg Effective
  • Taurine (1 g) 1,000 mg Effective
  • L-Glycine (1 g) 1,000 mg Under-dosed
  • Caffeine Anhydrous 250 mg Effective
  • Acetyl-L-Carnitine HCl 250 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Vitamin C (as Ascorbic Acid) 300 mg 333%
Vitamin E (as d-Alpha Tocopheryl Acetate) 36 mg 240%
Vitamin B6 (as Pyridoxine HCl) 20 mg 1,176%
Vitamin B12 (as Methylcobalamin) 50 mcg 2,083%
Calcium (as Calcium Silicate) 40 mg 3%
Creatine Monohydrate (3 g) 3,000 mg
Beta-Alanine (1.75 g) 1,750 mg
Betaine Anhydrous (1.5 g) 1,500 mg
Taurine (1 g) 1,000 mg
L-Glycine (1 g) 1,000 mg
Caffeine Anhydrous 250 mg
Acetyl-L-Carnitine HCl 250 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.

DL-Malic Acid Generally_safe

It is used to add a tart or sour taste to the supplement.

Natural & Artificial Flavors Generally_safe

It is used to improve the taste of the product.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Calcium Silicate Safe

Prevents ingredient clumping during manufacturing.

Sucralose Generally_safe

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

Beet Juice Powder (For Color) Generally_safe

It is used to add a red or pink color to supplements.

Acesulfame Potassium Generally_safe

It is used to provide sweetness without adding calories.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$37$36$35$34$33 Mar 12 $34.99
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
MusclePharm

Founded 2006 · Las Vegas, Nevada, United States · 46 products · musclepharm.com/

Certifications

1 certification
Informed Sport Verified Source

Transparency

3 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Verified Source

Violation History

7 incidents
Recall MusclePharm Assault Hybrid supplements2024-06-20Source
Lawsuit Breach of contract lawsuit filed by Capstone Nutrition.2016Source
Lawsuit Lawsuit from Hi-Tech Pharmaceuticals for artificially inflating protein levels.2016Source
Lawsuit Protein spiking in Arnold Schwarzenegger Series Iron Mass supplement.2015Source
Lawsuit Accounting and disclosure violations, including failure to report executive perks.2015Source
Recall MusclePharm Cookies 'N' Cream Combat Powder and Banana Cream Combat Powder2013-03-14Source
Prop 65 Not specified in the initial notice2011Source
Related Supplements
Frequently Asked Questions
Is MusclePharm Assault® Preworkout, Watermelon a good supplement?

MusclePharm Assault® Preworkout, Watermelon, 12.1 oz (344 g) received a product quality score of 87/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 12 active ingredients with 30 servings per container. Of the 8 inactive ingredients, 3 are rated safe and 0 are flagged for review. The manufacturer, MusclePharm, holds a brand trust score of 75/100 with 1 verified certifications including Informed Sport.

What are the ingredients in MusclePharm Assault® Preworkout, Watermelon?

MusclePharm Assault® Preworkout, Watermelon contains 12 active ingredients: Vitamin C (as Ascorbic Acid) (300 mg), Vitamin E (as d-Alpha Tocopheryl Acetate) (36 mg), Vitamin B6 (as Pyridoxine HCl) (20 mg), Vitamin B12 (as Methylcobalamin) (50 mcg), Calcium (as Calcium Silicate) (40 mg), Creatine Monohydrate (3 g) (3,000 mg), and 6 more. Notable high-dose ingredients include Vitamin C at 333% DV, Vitamin E at 240% DV, Vitamin B6 at 1,176% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is MusclePharm Assault® Preworkout, Watermelon safe to take?

MusclePharm Assault® Preworkout, Watermelon, 12.1 oz (344 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 MusclePharm a trustworthy supplement brand?

MusclePharm receives a brand trust score of 75/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2006 and headquartered in Las Vegas, Nevada, United States, the company offers 46 products in their lineup. They hold 1 verified certifications including Informed Sport. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: MusclePharm has 7 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.