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MusclePharm
Assault
High stimulant content · Read safety guidance
Our analysis — editorial take, not from the label
A fully-disclosed, no-blend budget pre-workout at roughly a dollar a serving or less, pairing a moderate-high 250mg caffeine dose with 3g creatine in an 11.5g scoop, though its beta-alanine and betaine doses sit toward the lower end of what's typically studied.
- Caffeine
- 250 mg
- Citrulline
- —
- Beta-alanine
- 1.75 g
- Servings
- 30
Price tier: Budget · relative cost per full serving across this database
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Comes in fruit-candy flavors like Blue Raspberry, Fruit Punch, Watermelon, and Melon Hwachae, sweetened with sucralose and acesulfame potassium.
Label verified: July 2026 · View label source
Label data
Per full serving · 30 servings per container · from the manufacturer's panel
| Caffeine | 250 mg |
|---|---|
| Creatine Monohydrate | 3 g |
| Beta-Alanine (CarnoSyn) | 1.75 g |
| Betaine Anhydrous | 1.5 g |
| Proprietary blend | No |
Primary label source: MusclePharm official product page · verified July 2026
Cautions
- 250mg caffeine per scoop is roughly 2.5 cups of coffee.
- 1.75g beta-alanine may cause a temporary tingling sensation.
- The lower per-serving cost likely reflects lighter dosing on beta-alanine and betaine, plus no citrulline at all, versus premium-tier fully-dosed pre-workouts.
Formulated for healthy adults — not intended for anyone under 18. Performance studies use roughly 3–6 mg of caffeine per kg of body weight, which puts 250 mg at the studied amount for a 42–83 kg adult. Full health & safety notes
Product details
Where this label sits
MusclePharm Assault sits in the high stim tier of the Scoop Sense pre-workout database, which spans 0–400 mg of caffeine per serving. Every active ingredient on the panel is listed with its own dose — nothing is hidden inside a blend total. It runs 30 servings per container at the full labeled serving. Everything on this page comes from the manufacturer's supplement facts panel as of July 2026 — never from the marketing page.
Key ingredients & studied doses
- Caffeine Anhydrous · 250 mg. Comparable to about 2.5 cups of brewed coffee; within the range commonly used in acute exercise-performance caffeine studies.
- Creatine Monohydrate · 3 g. Matches the standard 3-5g daily maintenance dose used in creatine research.
- Beta-Alanine (CarnoSyn) · 1.75 g. Below the ~3.2g daily split-dose typically used in studies on raising muscle carnosine, though sourced as branded CarnoSyn.
- Betaine Anhydrous · 1.5 g. At the low end of the 1.25-2.5g range used in betaine and power-output research.
Flavors & sweetener
Comes in fruit-candy flavors like Blue Raspberry, Fruit Punch, Watermelon, and Melon Hwachae, sweetened with sucralose and acesulfame potassium.
Who it's best for
Users with an established caffeine tolerance. A reasonable pick when cost per serving matters. Derived from the label figures above — not medical advice.
How we log this label
Every entry is built the same way: we read the current supplement facts panel, log each disclosed dose, compare it against the amounts used in published research, flag proprietary blends, and state the cautions plainly. The full methodology explains each step.
This label against the research
How we evaluate labelsEach bar shows the amount commonly used in published human research, and where this label's dose falls against it. Research amounts are context, not a recommendation — they are not doses, and nothing here is medical advice.
-
Caffeine250 mg
At or above the studied amount0studied range 200 mg–400 mg450 mg
Performance studies most often use 3–6 mg per kg of body weight, which works out to roughly 200–400 mg for most adults. The FDA cites 400 mg a day as an amount not generally associated with negative effects in healthy adults.
Source: Guest et al., Journal of the International Society of Sports Nutrition 2021 — “Caffeine has consistently been shown to improve exercise performance when consumed in doses of 3–6 mg/kg body mass.”
-
Creatine3 g
At or above the studied amount0studied range 3 g–5 g6 g
Maintenance dosing in the research is 3–5 g a day of monohydrate, every day, not only on training days.
Source: Kreider et al., Journal of the International Society of Sports Nutrition 2017 — “Once muscle creatine stores are fully saturated, creatine stores can generally be maintained by ingesting 3–5 g/day”
-
Beta-alanine1.75 g
55% of the low end of the studied range0studied range 3.2 g–6.4 g7 g
Studied as a daily loading protocol of 3.2–6.4 g taken for four weeks or longer. A single serving below that range still counts toward the daily total, but one scoop is not a studied dose on its own.
Source: Rezende et al., Frontiers in Physiology 2020 — “It seems that substantial amounts of BA are required to increase MCarn, with most studies using doses of ~3.2–6.4 g·day−1, for periods ranging from 4 to 24 weeks.”
-
Betaine1.5 g
60% of the low end of the studied range0studied range 2.5 g3.5 g
Trials run from 1.25 g to 5 g a day; 2.5 g, usually split into two doses, is the amount most of them use.
Source: Lee et al., Journal of the International Society of Sports Nutrition 2010 — “Betaine supplement (B) was given as 1.25 grams (g) of betaine (Danisco Inc., Ardsley, NY) in 300 mL of Gatorade© sports drink, taken twice daily”
Common questions about MusclePharm Assault
How much caffeine is in MusclePharm Assault?
250 mg per full labeled serving — roughly 2.6 small cups of coffee. Within the Scoop Sense pre-workout database (0–400 mg per serving) that places it in the high stim tier. The FDA cites about 400 mg per day as an amount generally not associated with negative effects in healthy adults, and coffee, tea, and energy drinks count toward the same total.
Why does MusclePharm Assault make my skin tingle?
The 1.75 g of beta-alanine. The prickling (paresthesia) in the face, neck, and hands is generally considered harmless, is dose-dependent, and fades on its own — typically within about an hour. Most beta-alanine studies use 3.2 g per day.
Does MusclePharm Assault disclose every dose?
Yes — the label lists an individual amount for each ingredient, with no proprietary blends. That is what the "label fully disclosed" tag on Scoop Sense means, and it is what lets each dose be compared against the amounts used in published research.
Do the numbers for MusclePharm Assault assume one scoop or two?
All figures on this page are per full labeled serving. 250mg caffeine per scoop is roughly 2.5 cups of coffee..