Core Nutritionals Pump Stim-Free Pre-Workout Powder 20 Servings - L-Citrulline 6000mg | Svpplements

Core Nutritionals

Core Nutritionals | Pump

Clinical citrulline, NO3-T® nitrates, HydroMax® hydration, zero stimulants.

$49.95 $54.99
0

SuppVault Score

Solid — clinically credible

Core Nutritionals | Pump

Six dimensions, weighted by category. Each is scored 0–10 from the supplement-facts panel data and the 2,492-ingredient knowledge base.

  • Clinical Dosing 10/10
  • Label Transparency 10/10
  • Manufacturing 4/10
  • Testing 3/10
  • Inactive Ingredients 9/10
  • Value 5/10
See the full algorithm → Read methodology

Scores are deterministic — same label in, same score out. Proprietary blends naturally score lower on transparency by design, not as a penalty.

Tastes like: [ "limited edition" ]
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Hand Packed Climate-controlled
6000mg L-Citrulline
3200mg Beta-Alanine
2500mg Betaine Nitrate as NO3-T®
2000mg HydroMax
✓ Label Verified✓ No Prop Blends⚠ Review Advised
6,000mg L-Citrulline — clinical pump dose
3,200mg Beta-Alanine — research benchmark
2,500mg Betaine Nitrate — dual-action NO support
2,000mg HydroMax — cell hydration support
600mg Alpha-GPC 50% — focus support
254mg VasoDrive-AP — vasodilation peptide support
Astragin™ No3 t™ Vasodrive ap™ Hydromax™
🥬 Vegetarian 🌾 Gluten Free 🫘 Soy Free 🚫 Sugar Free
"The pumps come on fast and stay full through the whole session without any stim buzz. Great for late training when you want performance, focus, and vascularity without caffeine."
Verified buyer
Featuring: NO3-T® by ThermoLife InternationalHydroMax® by Glanbia NutritionalsVasoDrive-AP® by MayproAstraGin® by NuLiv Science
SuppVault Summary

Core Nutritionals Pump is a true stim-free pump formula built for blood flow, hydration, endurance, and focus. It layers multiple performance pathways instead of relying on a token nitric oxide blend. Standout doses include 6,000mg L-citrulline and 2,500mg betaine nitrate.

Great Fit

  • Intermediate to advanced bodybuilders chasing fuller hypertrophy sessions
  • Evening lifters wanting performance without sleep disruption
  • Athletes stacking pumps with a separate stimulant pre-workout
  • High-volume trainers wanting better hydration and work capacity
  • Lifters focused on mind-muscle connection and fullness
  • Users wanting a true non-stim pre-workout experience
  • Pump-focused athletes avoiding disguised underdosed formulas

Not Ideal If

  • Anyone under 18 unless guided by a healthcare professional
  • Pregnant or nursing individuals should avoid this formula
  • People sensitive to beta-alanine tingling or glycerol fullness
  • Anyone avoiding nitrates or cholinergic performance ingredients
⚠️ Allergen Information +
Contains:
Manufactured in a facility that also processes:

Brand-Published Lab Tests

Core Nutritionals publishes test results from independent third-party labs. Svpplements links to the manufacturer’s data — we don’t test products ourselves.

Lab data is published by the manufacturer. Svpplements neither verifies nor warrants third-party test results — we curate the link so you can check the source. How we evaluate testing →
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When Pre workout
Time Any time
What You'll Feel
0-10 min
No stimulant rush; beta-alanine tingles may begin
10-20 min
Blood flow builds and early sets feel smoother
💪
20-40 min
Peak pumps, fuller muscles, stronger workout focus
🎯
40-90 min
Pumps stay elevated with better hydration and endurance
1-2 weeks
Sessions feel more consistent as daily use accumulates
2-4 weeks
Beta-alanine support improves repeated-effort fatigue tolerance

Deep Dive

Pump 3
Lc
L-Citrulline
6000mg
Clinical
Bn
Betaine Nitrate
2500mg
Yy
VasoDrive-AP
254mg
Endurance 1
Be
Beta Alanine
3200mg
Clinical
Electrolyte 1
Gp
HydroMax
2000mg
Focus 1
Al
Alpha GPC 50%
600mg
Absorption 1
Sg
AstraGin
50mg
PUM: 3END: 1ELE: 1FOC: 1ABS: 1
Alpha-GPC
Clinical Dose
600mg
Clinical range: 300-600mg
moderate
50mg
Clinical range: 50mg
moderate
Beta-Alanine
Clinical Dose
3200mg
Clinical range: 3200-6400mg
strong
Betaine Nitrate (as NO3-T®)
NO3-T®Clinical Dose
2500mg
Clinical range: 1500mg - 2500mg
strong
Casein Hydrolysate
Clinical Dose
254mg
Clinical range: 254-508mg
strong
Glycerol Powder
Below Clinical
2000mg
Clinical range: 5000-10000mg
moderate
L-Citrulline
Clinical Dose
6000mg
Clinical range: 6000-8000mg
strong

L-Citrulline

6000mg Dose
Daily Value
Disclosed Transparency
View full research →

Beta Alanine

3200mg Dose
Daily Value
Disclosed Transparency
View full research →

Betaine Nitrate

Form: as NO3-T®
2500mg Dose
Daily Value
Disclosed Transparency
View full research →

HydroMax

Form: 65% Glycerol Powder
2000mg Dose
Daily Value
Disclosed Transparency
View full research →

Alpha GPC 50%

600mg Dose
Daily Value
Disclosed Transparency
View full research →

VasoDrive-AP

254mg Dose
Daily Value
Disclosed Transparency
View full research →

AstraGin

Form: (Astragalus membranaceous and Panax notoginseng) Root Extracts
50mg Dose
Daily Value
Disclosed Transparency
View full research →
7 Disclosed
7 Total
3 Trademarked
0 In Blends

Dose Audit

L-Citrulline
6000mg
Beta Alanine
3200mg
HydroMax
2000mg
VasoDrive-AP
254mg
AstraGin
50mg
BASE Core Nutritionals | Pump
$49.95
Core Nutritionals | Creatine Monohydrate
$24.99

Creatine complements this formula extremely well because Pump covers blood flow, hydration, and fatigue management, while creatine covers phosphocreatine replenishment for high-intensity output. The result is better support for both repeated effort and explosive strength without overcrowding the formula.

Take daily anytime; pairing with Pump pre-workout is convenient.

Electrolyte hydration formulaHYDRATION

HydroMax® glycerol works best when hydration status is actually supported. Adding sodium, potassium, and magnesium can improve fluid balance, muscle function, and the overall fullness effect from glycerol-based pump formulas.

Take with or alongside Pump pre-workout, especially in hot training environments.

Simple caffeine capsule or stim pre-workoutENERGY

Because Pump is stim-free, it stacks cleanly with a separate caffeine source if you want central nervous system drive in addition to blood flow and endurance support. This lets you customize energy without giving up the robust pump architecture of this formula.

Take 20-30 minutes pre-workout alongside Pump, adjusting total stimulant intake to tolerance.

Highly branched cyclic dextrin or pre-workout carbohydrateENDURANCE

Carbohydrates pair well with pump formulas because increased blood flow and cell hydration are more useful when glycogen availability and training fuel are also supported. This combination is especially effective for long hypertrophy sessions and high-volume leg days.

Take with Pump 20-30 minutes pre-workout or sip during training.

Post-workout whey isolatePROTEIN

Pump improves the quality of the training session; protein supports the adaptation to that session. Pairing a complete protein after training gives the body the amino acids needed to capitalize on the improved workload and muscle recruitment this formula helps create.

Take within the post-workout meal window after training.

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Per Day
Includes base product + selected items
Core Nutritionals | Pump78
$49.95
This Product
$/srv: $2.25
This Product Wins

Pump has a more complete performance profile with beta-alanine, glycerol, alpha-GPC, and VasoDrive-AP.

$/srv: $1.67
Tie

Choose Pump for stim-free blood flow support, or Essential for energy-driven pre-workout use.

$/srv: $1.67
Tie

Both are premium pump formulas, with Pump standing out for beta-alanine and VasoDrive-AP.

$/srv: $2.17
Them

Chemix may edge total pump saturation, but Pump wins on balanced performance and stackability.

Clinical Dosing

L-Citrulline
Under-researched No clinical-dose range yet — manufacturer dose only.
6000mg
Beta-Alanine
Under-researched No clinical-dose range yet — manufacturer dose only.
3200mg
Betaine Nitrate as NO3-T®
Under-researched No clinical-dose range yet — manufacturer dose only.
2500mg
HydroMax
Under-researched No clinical-dose range yet — manufacturer dose only.
2000mg

Frequently bought together

Comparison

How this stacks up

Side-by-side against the closest competitors. Score reflects clinical dosing, transparency, and testing.

Comparison data combines live storefront pricing with our SuppVault analysis. Competitor scores reflect public-label data; manufacturer-side changes may not be reflected in real time.

Full Product Description Article

Core Nutritionals Pump is a true stim-free pump and performance formula, not a disguised pre-workout with a token nitric oxide blend. The formulation strategy is clear: build a high-output training experience through clinically relevant vasodilation, better intracellular hydration, improved fatigue resistance, and sharper neuromuscular drive. Instead of leaning on one pump ingredient and calling it a day, this formula layers multiple complementary mechanisms: citrulline for the arginine-nitric oxide pathway, nitrate-bound betaine for the nitrate-nitrite-NO pathway, glycerol for hyperhydration and cell volumization, beta-alanine for acid buffering, alpha-GPC for power and focus, and VasoDrive-AP® for additional vascular support.

L-Citrulline is dosed at 6,000mg, which matters because this is the range most serious users look for in a real pump product. Citrulline is converted to arginine in the kidneys more efficiently than oral arginine raises plasma arginine directly, making it one of the most reliable ways to support nitric oxide production and blood flow. Research and meta-analytic data on citrulline and related nitric oxide precursors support benefits for vascular function and exercise performance, with common dosing in the 3-8g/day range. At 6g, this formula lands right in the clinical sweet spot for fuller pumps, improved blood flow, and better delivery of oxygen and nutrients to working muscle.

Beta-alanine is set at 3,200mg, the benchmark daily dose used in performance research to increase intramuscular carnosine over time. That matters because carnosine buffers hydrogen ions during hard training, helping delay the burning fatigue that shows up during high-rep sets, short rest intervals, and repeated efforts. This is not a one-day miracle ingredient; it is a saturation ingredient. Day one, some users feel the classic tingling sensation. Over the next several weeks, the real benefit is improved tolerance to volume and less collapse in later sets.

Betaine nitrate at 2,500mg as NO3-T® is one of the most important design choices in this formula. Nitrates support nitric oxide production through a pathway separate from citrulline, which is exactly why combining the two is smart. You are not doubling up on the same mechanism; you are widening nitric oxide support through parallel systems. The betaine component also supports cellular performance and power output, while the nitrate portion is there for blood flow, vascularity, and workout feel.

HydroMax® at 2,000mg yields 65% glycerol powder, giving this formula a meaningful cell-hydration component. Glycerol works differently from nitric oxide boosters: it helps pull and retain water, contributing to muscle fullness, endurance under heat and volume stress, and that dense, swollen training feel that lifters chase on arm days, leg days, and high-volume upper sessions.

Alpha-GPC 50% is dosed at 600mg, yielding 300mg active alpha-GPC. That is a useful performance-minded dose for cholinergic support, helping with focus, output, and mind-muscle connection without stimulants. VasoDrive-AP® at 254mg is a standout inclusion rarely seen in standard pump formulas. It contains bioactive casein-derived peptides studied for ACE-inhibitory effects and vascular support, making it a sophisticated add-on for blood flow. AstraGin® at 50mg rounds the formula out by supporting absorption and uptake.

As a system, this formula makes sense. Citrulline and nitrates support nitric oxide from different angles. Glycerol helps translate that blood flow into visible fullness and endurance-supportive hydration. Beta-alanine helps you keep performing once the session gets uncomfortable. Alpha-GPC improves the quality of effort and contraction. VasoDrive-AP® enhances the vascular side further. Importantly, this is a fully disclosed label with no proprietary blend, which is still a major advantage in a category full of underdosed pump products and hidden blend totals.

What to expect: the first use is about pump onset, fullness, focus, and possibly beta-alanine tingles. Over 2-4 weeks of daily use, beta-alanine becomes more valuable as muscle carnosine levels build, making the formula more than a cosmetic pump product. This is a serious stim-free performance formula with transparent dosing and intelligent ingredient synergy.

Science & Clinical References 25 citations
Dual Nitric Oxide Pathway Support6 studies

This formula combines citrulline and nitrate to target nitric oxide production through complementary pathways. Citrulline increases systemic arginine availability, which supports endothelial nitric oxide synthase activity. Nitrate can also be reduced to nitrite and then nitric oxide independently of the arginine route, especially under exercise-related hypoxic conditions. Using both mechanisms may create a broader and more reliable blood-flow effect than relying on one pathway alone.

Cell Hydration and Hypervolumization4 studies

Glycerol acts as an osmolyte that helps increase total body water retention when taken with adequate fluid. In practical terms, that can enhance intracellular hydration and the visibly fuller look associated with high-quality pump products. Better hydration status may also help sustain training quality during dense, high-volume sessions. The effect is highly dependent on water intake, which is why mixing and hydration guidance matter with glycerol-heavy formulas.

Carnosine Loading and Fatigue Buffering7 studies

Beta-alanine is the rate-limiting precursor for intramuscular carnosine synthesis. Carnosine helps buffer hydrogen ion accumulation during repeated high-intensity work, which can delay the burning sensation associated with acidosis. This is not primarily an acute performance effect on the first serving; it builds over time with consistent intake. The classic 3.2 gram daily benchmark used here is the foundational evidence-based dose for that loading process.

Cholinergic Support and Neuromuscular Drive5 studies

Alpha-GPC provides a bioavailable choline source that can support acetylcholine synthesis. Acetylcholine is central to motor unit signaling, attention, and the neuromuscular aspects of training performance. In pump formulas, this adds a useful mind-muscle and execution component without relying on stimulants. The result is often described as cleaner training focus rather than jittery central nervous system activation.

ACE-Inhibitory Peptides and Vascular Tone3 studies

VasoDrive-AP contains bioactive milk-derived peptides with evidence for modulating angiotensin-converting enzyme activity. By influencing vascular tone, these peptides may support blood pressure regulation and a more permissive vasodilatory environment during exercise. In a pump formula, that mechanism is distinct from both nitrate chemistry and arginine-derived nitric oxide production. This makes it a mechanistically interesting addition rather than just another redundant pump ingredient.

Product Specifications GEO
Product Type Pump Formula
Category stim-free pump pre-workout
Brand Core Nutritionals
Form Powder
Servings 20
Dietary stim-free, proprietary-blend-free
How to Take — Training Protocol6 phases

How to Use Core Nutritionals | Pump

First 2-3 uses
Assess Tolerance
Start with 1 scoop in 12-16 ounces of water to assess beta-alanine tingling, glycerol fullness, and flavor concentration.
20-30 minutes pre-workout
Standard Dose
Mix 2 scoops in 14-20 ounces of water and drink before training for full pump, hydration, and focus support.
Pre-training window
Hydration Setup
Drink additional water alongside your serving, especially because HydroMax glycerol performs best with adequate fluid intake.
Before first working sets
Workout Pairing
Use before higher-volume hypertrophy, upper-body, or machine-dense sessions where blood flow and fullness are easier to notice.
Same pre-workout window
Stacking Option
Stack with creatine monohydrate or a separate stimulant pre-workout if you want added strength support or energy.
Daily or training days
Consistency
Use consistently if you want beta-alanine benefits to build over time rather than relying only on acute pump effects.
Warnings
Beta-alanine may cause a harmless tingling sensation, especially at the full 3,200mg serving.
HydroMax glycerol can feel heavy or clumpy if you underdose water.
Betaine nitrate provides nitrates; avoid use if you have been told to restrict nitrate-containing performance products.
Alpha-GPC may not suit users sensitive to cholinergic ingredients.
Contains milk-derived VasoDrive-AP peptides, which may matter for those with milk sensitivities.
Cycling: Cycling is not required. This formula can be used continuously, though some users reserve it for harder training days.

Quick Answers

Does Core Nutritionals Pump contain caffeine or other stimulants?

No. This formula is stim-free, so its effects come from blood-flow, hydration, and performance ingredients like 6g L-citrulline, 2.5g NO3-T® betaine nitrate, 2g HydroMax®, 3.2g beta-alanine, and 600mg alpha-GPC 50%. That makes it useful for late training sessions or for stacking with a separate stimulant product.

Is 6,000mg of L-citrulline enough for a real pump?

Yes. Six grams is widely considered a clinically relevant dose for pump formulas and sits within the common effective range used in research and high-end pre-workouts. It supports nitric oxide production through the arginine-NO pathway and is one of the main reasons this formula feels legitimate instead of decorative.

Why use both citrulline and NO3-T® betaine nitrate in the same formula?

Because they support nitric oxide through different mechanisms. Citrulline feeds the arginine-NO pathway, while nitrates support the nitrate-nitrite-NO pathway, so using both gives broader blood-flow support than relying on one pathway alone.

Will Core Nutritionals Pump make me tingle?

Possibly, yes. The formula contains 3.2g beta-alanine, which is the standard research-backed dose and commonly causes a harmless tingling sensation called paresthesia. Some people feel it strongly, others barely notice it, and it tends to become less novel over time.

How long does it take for the beta-alanine in this product to work?

Beta-alanine has both an immediate sensory effect and a longer-term performance effect. You may feel tingles on day one, but the real benefit comes from consistent daily use over several weeks as intramuscular carnosine levels increase.

What does HydroMax® add that citrulline alone does not?

HydroMax® is a glycerol ingredient, so it supports hyperhydration and cell volumization rather than nitric oxide directly. In real-world terms, it helps muscles hold more water and feel fuller, creating a denser pump than vasodilation alone.

Can I stack Core Nutritionals Pump with a caffeinated pre-workout?

Yes, and that is one of the best use cases for it. Because Pump contains no caffeine, it can be added to a simpler energy formula to increase blood flow, hydration, and endurance support without pushing stimulant intake even higher.

What does the 600mg Alpha GPC 50% actually provide?

It yields 300mg active alpha-GPC, since the raw material is standardized to 50%. That is a useful performance-focused cholinergic dose for supporting focus, neural drive, and mind-muscle connection in a stim-free format.

Is this just a cosmetic pump product?

No. The formula absolutely prioritizes pump, but the 3.2g beta-alanine and 300mg active alpha-GPC give it real performance value beyond the mirror. This is why it works well for volume, repeated efforts, and training quality, not just for arm-day photos.

Does VasoDrive-AP® matter at 254mg?

Yes, it is a meaningful premium inclusion. VasoDrive-AP® is a branded casein peptide ingredient used for vascular support, and its presence makes this formula more sophisticated than the average citrulline-plus-glycerol pump powder.
78

SuppVault Score

Core Nutritionals | Pump

💊 Clinical Dosing 10/10

7/7 key ingredients with disclosed doses

🏷 Label Transparency 10/10

Full label disclosure

🏭 Manufacturing 4/10

No manufacturing certifications found

🔬 Testing 3/10

No third-party certification found

🧪 Inactive Ingredients 9/10

Minimal inactive ingredients

💰 Value 5/10

Insufficient price/serving data

Scores are relative to category averages. Proprietary blends score lower on transparency naturally — this is neutral fact, not penalty.

Athlete status

Verified athletes can view NCAA, WADA, and high-school compliance status for this product.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Consult your physician before use if you have a medical condition or take medications.

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