Is Huge Supplements Pump Serum underdosed?

• CholineLabel: Choline (Choline Bitartrate)Per scoop 960 mgStudies Not setNot gradedEvidence: Not graded

  Contains 960 mg. Not graded: most people get enough choline from food, and a review of the exercise studies found supplements might only help endurance when very long, hard exercise lowers blood choline (Penry and Manore, 2008).

• Sodium (Himalayan Pink Sea Salt)Per scoop 197 mgStudies Not setNot gradedEvidence: Not graded

  Not graded: a vitamin or mineral. We grade a pre-workout’s ingredients against exercise studies; vitamins and minerals are graded only on their own supplement pages.

• L-CitrullineLabel: L-CitrulinePer scoop 8 gStudies 4–5.33 gEffective doseEvidence: Weak

  Contains 8 g; studies use 4–5.33 g.

• Betaine AnhydrousPer scoop 3 gStudies 2.5 g/dayEffective doseEvidence: Moderate

  Contains 3 g; studies use 2.5 g/day.

• GlycerolLabel: GlycerPump (Glycerol powder)Per scoop 3 gStudies Not setNot gradedEvidence: Not graded

  Contains 3 g. Not graded: studies used about 1–1.2 g per kg of bodyweight (75–90 g at 75 kg) with a large drink, to hold extra water before endurance exercise. Pre-workouts add 0.5–3 g of a 65% glycerol powder for "pumps"; we know of no study of amounts that small.

• Beet Root Extract (Betanin) [standardized to 0.3% betanin]Per scoop 2 gStudies Not setNot gradedEvidence: Not graded

  Not graded: the label gives it in a form or blend we can't turn into a dose (no stated ratio or amount), so it isn't counted. See the methodology.

• L-TyrosinePer scoop 1.5 gStudies Not setNot gradedEvidence: Not graded

  Contains 1.5 g. Not graded: a 2023 meta-analysis found no effect on endurance; its evidence is for focus under stress, at about 150 mg per kg of bodyweight.

• Arginine Silicate (Nitrosigine)Label: Nitrosigine (Inositol Arginine Silicate)Per scoop 1.5 gStudies 1.5 gEffective doseEvidence: Weak

  Contains 1.5 g; studies use 1.5 g.

• Agmatine SulfatePer scoop 1.25 gStudies Not setNot gradedEvidence: Not graded

  Contains 1.25 g. Not graded: no human study has tested it for exercise; human studies are for nerve pain.

• Pomegranate Peel Extract (Ellagic Acid) [standardized to contain 40% Ellagic Acid]Per scoop 1 gStudies Not setNot gradedEvidence: Not graded

  Not graded: we have no research dose for it from exercise studies.

• VasoDrive-AP (Casein Hydrolysate)Per scoop 254 mgStudies Not setNot gradedEvidence: Not graded

  Not graded: we have no research dose for it from exercise studies.

• Huperzine A (Huperzia serrata Leaf Extract) [Huperzine A 1%]Per scoop 20 mgStudies Not setNot gradedEvidence: Not graded

  Not graded: we have no research dose for it from exercise studies.

• BioPerine (black pepper extract)Label: Bioperine (Black Pepper Fruit Extract)Per scoop 5 mgStudies Not setNot gradedEvidence: Not graded

  Contains 5 mg. Not graded: added to help the body absorb other ingredients; it has no dose of its own to judge.

Use “Check it for your dose” to see this table for your own scoops and bodyweight. Only caffeine is dosed per kilogram in the studies we cite; the other research doses are fixed amounts, so your weight doesn't change them.

How many scoops would it take?

To reach the low end of the research dose for each underdosed ingredient.

Taking more doesn't fix this product. Reaching those doses means more than 400 mg of caffeine from the scoops alone, above the FDA's 400 mg daily reference for most adults, before any coffee.

Where the reference doses come from

1. Arginine Silicate (Nitrosigine), 1.5 g: Kalman et al., 2016Rogers et al., 2020.
2. Betaine Anhydrous, 2.5 g/day: Cholewa et al., 2013Hoffman et al., 2009Zawieja et al., 2024.
3. L-Citrulline, 4–5.33 g: Gough et al., 2021Vårvik et al., 2021.
4. Daily caffeine reference, 400 mg: US FDA, Spilling the Beans.
5. Label data: National Institutes of Health, Office of Dietary Supplements. Dietary Supplement Label Database, 2026. https://dsld.od.nih.gov/. Label 299813.

Methodology 1.11. Read the full methodology or the corrections log.