Retailer
Brand Direct
Current price
$39.99
Per serving
$1.33
Last checked 2d ago· Paid link
Buy (paid link)Paid link. We may earn a commission. Scores are independent of affiliate relationships.
High-stim mass-market pre-workout featuring a 6.5 g proprietary 'Volt Pump Matrix' and 350 mg caffeine.
350 mg
Caffeine Anhydrous
30
15 g scoop
$39.99
$1.33/serving
$1.95
Adjusted for active dose
Limited, primarily high-stim seekers who don't need transparency.
Caffeine-sensitive users, anyone wanting transparent dosing, or athletes in tested sport.
IronVolt
X9 Pre-Workout, Blue Razz
Primary active
Caffeine Anhydrous
350 mg per serving · 15 g scoop
Caffeine at moderate doses may support perceived energy and performance, but this product's proprietary blend prevents us from verifying the effective amounts of other listed actives.
Benefit language is intentionally cautious. Supplements may support outcomes when paired with appropriate training, nutrition, and individual health context.
Brand claims never roll up as verified facts.
350 mg caffeine per serving
Brand claimListed on label; not independently verified.
Volt Pump Matrix
Needs reviewProprietary blend, ingredient amounts inside the matrix are not disclosed.
$1.95
4% above median ($1.88)
MegaSupp
$37.99 · last checked 2d ago
Save $2.00
Highest: Brand Direct at $39.99
Paid link. We may earn a commission. Scores are independent of affiliate relationships.
Retailer
Current price
$39.99
Per serving
$1.33
Last checked 2d ago· Paid link
Buy (paid link)Paid link. We may earn a commission. Scores are independent of affiliate relationships.
Retailer
Current price
$37.99
Per serving
$1.27
Last checked 2d ago
Visit retailerPrices and availability can change. Retailer prices should be confirmed at checkout. Price data includes a last-checked timestamp when available.
ClarityStim
2d ago
6 g of L-Citrulline per 14 g scoop
84
/ 100
200 mg caffeine, be mindful if combining with coffee or other stimulants
Lowtide
2d ago
100 mg of Caffeine per 11 g scoop
80
/ 100
Citrulline at 3 g is below the commonly studied 6–8 g range
ClarityStim
2d ago
6 g of L-Citrulline per 14 g scoop
84
/ 100
200 mg caffeine, be mindful if combining with coffee or other stimulants
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How we score
Scores are based on available public information, product labels, retailer data, brand claims, and third-party evidence where available. Missing evidence may lower confidence but does not automatically mean a product is unsafe.
Medical disclaimer
This information is educational and is not medical advice. Supplements may not be appropriate for everyone. Talk to a qualified healthcare professional before starting any supplement, especially if you are pregnant, nursing, taking medication, or managing a medical condition.