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High Volume Blue Frost

4.7
★ ★ ★ ★ ★
(48 ratings)
Citrulline 4000 mg
Product Image
Score65
A useful stimulant-free pump blend with fully disclosed citrulline, nitrate, and agmatine amounts, but it carries premium cost and stronger blood-pressure effects.
How scoring works
Quantity:8 Ounce(s) • (18 servings)
Goals:
Fitness
Weight Gain
Energy
Heart Health
Cardiovascular Support
Muscle Gain

Score 65

A useful stimulant-free pump blend with fully disclosed citrulline, nitrate, and agmatine amounts, but it carries premium cost and stronger blood-pressure effects.
How scoring works
$34.99($1.94 per serving)
Nutrition Faktory
$ 39.99
iHerb
$ 34.99
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Analysis

L-citrulline is individually disclosed at 4,000 mg, placing it in a practical exercise-use range. Arginine nitrate and agmatine add complementary pump-focused ingredients without relying on caffeine.

The combined vasodilatory approach may appeal to stimulant-sensitive users, but it can also increase headache, flushing, or lightheadedness in susceptible people. The Performance Pump Matrix total is provided, and the named component amounts make the core formula reasonably clear.

Blue Frost offers a more favorable value position than the other listed flavors, though it remains expensive for the citrulline amount alone. It best fits users who specifically want the broader nitrate-and-agmatine blend rather than basic citrulline.

Who is it for
  • Stimulant-sensitive adults seeking workout pump support
  • Users who want citrulline combined with nitrate and agmatine
Best for
  • Pre-workout blood-flow support without caffeine
  • A multi-ingredient pump routine

Pros

  • Provides 4,000 mg of L-citrulline
  • Discloses arginine nitrate and agmatine amounts
  • Avoids caffeine as a primary workout driver

Cons

  • Costs more than basic citrulline products
  • Only 18 servings are supplied
  • Multiple pump actives may be excessive for sensitive users

Warnings

  • Arginine nitrate combined with L-citrulline and agmatine may cause headache, flushing, or lightheadedness.
  • Do not combine the nitrate-containing formula with nitrate medicine or erectile-dysfunction medicine without professional guidance.
  • The combined blood-flow ingredients may add to antihypertensive medicine and lower blood pressure further.

Nutrient quality

85 Highest impact

Meaningful citrulline, nitrate, and agmatine amounts provide strong pump-formula depth. The assertive vasodilator combination may not suit users taking blood-pressure-lowering medicines.

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Ingredient transparency

61 Moderate impact

Main active amounts are visible, but the performance matrix remains partly opaque. Complete directions and inactive powder ingredients are also missing.

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Customer satisfaction

61 Moderate impact

The supplied average is very strong and supported by moderate volume. No review themes were provided, so consistency and purpose-specific experience cannot be assessed.

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Value for money

51 Moderate impact

Strong pump doses provide meaningful quality value. A high serving cost and partly hidden matrix make the product weakly competitive.

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Report analysis

Goals

Fitness
Impact
Highest effect
A+ Goal FitA Strength of SupportB+ CoverageA Formula Quality
Citrulline · 4000 mg

L-citrulline, arginine nitrate, and agmatine directly target nitric oxide, blood flow, and workout endurance. Citrulline has strong human performance evidence, while nitrate and agmatine provide plausible complementary pump support.

The 4 g citrulline, 2 g arginine nitrate, and 1 g agmatine amounts are substantial. Pure L-citrulline and the two supporting pump actives are individually named and quantified.

Study evidence
Citrulline Supportive 45 studies
Vitamin C No effect 17 studies
Weight Gain
Impact
High effect
B- Goal FitB+ Strength of SupportC+ CoverageA Formula Quality
Citrulline · 4000 mg

Citrulline, arginine nitrate, and agmatine create a concentrated stimulant-free pump formula that may improve blood flow and workout quality. The product offers only indirect support for lean-mass gain and provides no protein, creatine, or meaningful calories.

Citrulline, arginine nitrate, and agmatine are supplied at useful amounts, but the separately listed pump matrix makes the relationship among its components less clear. Strong pump depth may improve training experience, yet the formula leaves ATP regeneration, muscle-repair nutrition, and recovery largely uncovered.

Study evidence
Citrulline No effect 8 studies
Energy
Impact
High effect
B+ Goal FitB Strength of SupportC CoverageB+ Formula Quality

L-citrulline, arginine nitrate, and agmatine provide focused blood-flow support for exercise performance. The citrulline amount falls within a commonly used range and the major actives are substantial.

The formula does not support cellular ATP production, mental alertness, or stress resilience, so its energy benefit is limited to workout endurance. A large performance matrix is not broken into individual ingredients, which reduces transparency despite the disclosed headline actives.

Study evidence
Citrulline No effect 14 studies
Heart Health
Impact
High effect
B Goal FitB Strength of SupportC+ CoverageB Formula Quality
Citrulline · 4000 mg

L-citrulline and arginine nitrate form a focused nitric-oxide system with meaningful potential to support blood flow. The citrulline amount is useful, while the nitrate ingredient and agmatine broaden vascular mechanisms without relying on stimulants.

The one-to-two-scoop direction makes actual intake less certain, and the named performance matrix complicates total-dose interpretation. The formula is strong for focused vascular support but does not cover lipids, homocysteine, minerals, or cardiac cellular energy.

Study evidence
Citrulline Supportive 39 studies
Impact
High effect
B- Goal FitB Strength of SupportC CoverageB- Formula Quality
Vitamin C · 250 mgCitrulline · 4000 mg

Citrulline, arginine nitrate, and agmatine create a focused combination for nitric oxide and exercise blood flow. The disclosed citrulline amount reaches a useful range and the stimulant-free design avoids a common pre-workout drawback.

Most of the benefit remains concentrated in one vascular pathway rather than broad cardiovascular maintenance. People using nitrate medicines or blood-pressure-lowering drugs should discuss the combined vasodilator ingredients with a clinician because lightheadedness or low blood pressure may occur.

Study evidence
Citrulline Supportive 33 studies
Vitamin C Supportive 101 studies
Muscle Gain
Impact
High effect
C+ Goal FitC+ Strength of SupportC- CoverageB Formula Quality
Citrulline · 4000 mg

Citrulline, arginine nitrate, and agmatine create a stimulant-free pump formula that may support training volume. The disclosed citrulline amount is useful, and the formula avoids ingredients likely to impair sleep or recovery.

The product does not include creatine, beta-alanine, protein, or another direct hypertrophy foundation. A large performance-pump matrix is not broken into components, limiting assessment of the formula beyond the named actives.

Study evidence
Citrulline Supportive 15 studies

Ingredients

IngredientAmount per serving
Vitamin C
250 mg
L-Citrulline
4000 mg
Performance Pump Matrix
3750 mg
NO3-T (Arginine Nitrate)
2000 mg
Agmatine Sulfate
1000 mg
Adults 18–50 Women
Report overview
Citrulline · 4000 mg OverallScore76
B- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyD- Value

Pure L-Citrulline is named and its individual amount is disclosed. The 4,000 mg serving falls within the commonly used performance range. Citrulline-specific value is premium-priced despite a useful active amount.

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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. The Effects of Combined Exercise with Citrulline Supplementation on Body Composition and Lower Limb Function of Overweight Older Adults: A Systematic Review and Meta-Analysis.
    Xie S; Li S; Shaharudin S · Journal of sports science & medicine · 2023
    Meta-analysis303 participants7 studies pooledFitness forCitrulline
  2. Effect of isolated and combined ingestion of caffeine and citrulline malate on resistance exercise and jumping performance: a randomized double-blind placebo-controlled crossover study.
    Haugen ME; Vårvik FT; Grgic J; Studsrud H; Austheim E; Zimmermann EM; Falch HN; Larsen S; van den Tillaar R; Bjørnsen T · European journal of nutrition · 2023
    Randomized trial35 participantsFitness forCitrulline
  3. Does l-citrulline supplementation and watermelon intake reduce blood pressure in middle-aged and older adults? A systematic review and meta-analysis of randomized controlled trials.
    Luo P; Chen J; Liu K; Zhang J · Clinical nutrition ESPEN · 2025
    Meta-analysis415 participants15 studies pooledCardiovascular Support forCitrulline
  4. Micronutrient Supplementation to Reduce Cardiovascular Risk.
    An P; Wan S; Luo Y; Luo J; Zhang X; Zhou S; Xu T; He J; Mechanick JI; Wu WC; Ren F; Liu S · Journal of the American College of Cardiology · 2022
    Meta-analysis883,627 participants884 studies pooledCardiovascular Support forCitrulline
  5. l-Citrulline supplementation improves O2 uptake kinetics and high-intensity exercise performance in humans.
    Bailey SJ; Blackwell JR; Lord T; Vanhatalo A; Winyard PG; Jones AM · Journal of applied physiology (Bethesda, Md. : 1985) · 2016
    Randomized trial10 participantsCardiovascular Support forCitrulline
  6. Effects of L-Citrulline Supplementation on Endothelial Function and Blood Pressure in Hypertensive Postmenopausal Women.
    Maharaj A; Fischer SM; Dillon KN; Kang Y; Martinez MA; Figueroa A · Nutrients · 2022
    Randomized trial25 participantsCardiovascular Support Heart Health forCitrulline
  7. Short-term effects of L-citrulline supplementation on arterial stiffness in middle-aged men.
    Ochiai M; Hayashi T; Morita M; Ina K; Maeda M; Watanabe F; Morishita K · International journal of cardiology · 2012
    Randomized trial15 participantsCardiovascular Support forCitrulline
  8. Vitamin C may reduce troponin and CKMB levels after PCI and CABG: a meta-analysis.
    Rozemeijer S; Hemilä H; van Baaren M; de Man AME · BMC cardiovascular disorders · 2023
    Meta-analysis872 participants7 studies pooledCardiovascular Support forVitamin C
  9. Vitamin C improves endothelium-dependent vasodilation by restoring nitric oxide activity in essential hypertension.
    Taddei S; Virdis A; Ghiadoni L; Magagna A; Salvetti A · Circulation · 1998
    Clinical trial49 participantsCardiovascular Support forVitamin C
  10. Vitamin C supplementation improves blood pressure and oxidative stress after acute exercise in patients with poorly controlled type 2 diabetes mellitus: A randomized, placebo-controlled, cross-over study.
    Boonthongkaew C; Tong-Un T; Kanpetta Y; Chaungchot N; Leelayuwat C; Leelayuwat N · The Chinese journal of physiology · 2021
    Randomized trial24 participantsCardiovascular Support forVitamin C
  11. Vascular benefits of vitamin C supplementation against fine particulate air pollution in healthy adults: A double-blind randomised crossover trial.
    Ren J; Liang J; Wang J; Yin B; Zhang F; Li X; Zhu S; Tian H; Cui Q; Song J; Liu G; Ling W; Ma Y · Ecotoxicology and environmental safety · 2022
    Randomized trial58 participantsCardiovascular Support forVitamin C
  12. Ascorbic acid reduces blood pressure and arterial stiffness in type 2 diabetes.
    Mullan BA; Young IS; Fee H; McCance DR · Hypertension (Dallas, Tex. : 1979) · 2003
    Randomized trial30 participantsCardiovascular Support forVitamin C
  13. Acute Effect of Citrulline Malate on Repetition Performance During Strength Training: A Systematic Review and Meta-Analysis.
    Vårvik FT; Bjørnsen T; Gonzalez AM · International journal of sport nutrition and exercise metabolism · 2021
    Meta-analysis137 participants8 studies pooledEnergy forCitrulline
  14. Oral L-citrulline supplementation enhances cycling time trial performance in healthy trained men: Double-blind randomized placebo-controlled 2-way crossover study.
    Suzuki T; Morita M; Kobayashi Y; Kamimura A · Journal of the International Society of Sports Nutrition · 2016
    Randomized trial22 participantsEnergy forCitrulline
  15. Citrulline malate enhances athletic anaerobic performance and relieves muscle soreness.
    Pérez-Guisado J; Jakeman PM · Journal of strength and conditioning research · 2010
    Randomized trial41 participantsEnergy forCitrulline
  16. Citrulline/malate promotes aerobic energy production in human exercising muscle.
    Bendahan D; Mattei JP; Ghattas B; Confort-Gouny S; Le Guern ME; Cozzone PJ · British journal of sports medicine · 2002
    Single-arm trial18 participantsEnergy forCitrulline
  17. The Effect of Citrulline Malate Supplementation on Muscle Fatigue Among Healthy Participants.
    Farney TM; Bliss MV; Hearon CM; Salazar DA · Journal of strength and conditioning research · 2019
    Randomized trial12 participantsEnergy forCitrulline
  18. Effect of High-Intensity Interval Training Combined with L-Citrulline Supplementation on Functional Capacities and Muscle Function in Dynapenic-Obese Older Adults.
    Buckinx F; Gouspillou G; Carvalho LP; Marcangeli V; El Hajj Boutros G; Dulac M; Noirez P; Morais JA; Gaudreau P; Aubertin-Leheudre M · Journal of clinical medicine · 2020
    Randomized trial56 participantsFitness Muscle Gain forCitrulline
  19. Initial Dietary Protein Intake Influence Muscle Function Adaptations in Older Men and Women Following High-Intensity Interval Training Combined with Citrulline.
    Buckinx F; Marcangeli V; Pinheiro Carvalho L; Dulac M; Hajj Boutros G; Gouspillou G; Gaudreau P; Morais J; Noirez P; Aubertin-Leheudre M · Nutrients · 2020
    Randomized trial73 participantsFitness forCitrulline
  20. Effects of Citrulline alone or combined with exercise on muscle mass, muscle strength, and physical performance among older adults: a systematic review.
    Aubertin-Leheudre M; Buckinx F · Current opinion in clinical nutrition and metabolic care · 2021
    Systematic review250 participants6 studies pooledFitness Muscle Gain forCitrulline
  21. Combined Vs. Single Supplementation of L-Citrulline and Sodium Bicarbonate During Sprint Interval Training in Basketball Players: Effects on Physical Performance and Hormonal Adaptations.
    Wang Y; Wang Y; Qian K · Journal of sports science & medicine · 2025
    Randomized trial40 participantsFitness forCitrulline
  22. Inter-individual variability in redox and performance responses after antioxidant supplementation: A randomized double blind crossover study.
    Margaritelis NV; Nastos GG; Vasileiadou O; Chatzinikolaou PN; Theodorou AA; Paschalis V; Vrabas IS; Kyparos A; Fatouros IG; Nikolaidis MG · Acta physiologica (Oxford, England) · 2023
    Randomized trial44 participantsFitness forVitamin C
  23. Antioxidant supplementation, redox deficiencies and exercise performance: A falsification design.
    Margaritelis NV; Paschalis V; Theodorou AA; Kyparos A; Nikolaidis MG · Free radical biology & medicine · 2021
    Randomized trial73 participantsFitness forVitamin C
  24. A significant relationship between plasma vitamin C concentration and physical performance among Japanese elderly women.
    Saito K; Yokoyama T; Yoshida H; Kim H; Shimada H; Yoshida Y; Iwasa H; Shimizu Y; Kondo Y; Handa S; Maruyama N; Ishigami A; Suzuki T · The journals of gerontology. Series A, Biological sciences and medical sciences · 2012
    Cross-sectional study655 participantsFitness forVitamin C
  25. Low vitamin C values are linked with decreased physical performance and increased oxidative stress: reversal by vitamin C supplementation.
    Paschalis V; Theodorou AA; Kyparos A; Dipla K; Zafeiridis A; Panayiotou G; Vrabas IS; Nikolaidis MG · European journal of nutrition · 2016
    Clinical trial20 participantsFitness forVitamin C
  26. Low dietary vitamin C intake is associated with low muscle strength among elderly Korean women.
    Park CY; Shin S · Nutrition research (New York, N.Y.) · 2024
    Cross-sectional study14,844 participantsFitness forVitamin C
  27. Effect of oral L-citrulline on brachial and aortic blood pressure defined by resting status: evidence from randomized controlled trials.
    Yang HH; Li XL; Zhang WG; Figueroa A; Chen LH; Qin LQ · Nutrition & metabolism · 2022
    Meta-analysis8 studies pooledHeart Health forCitrulline
  28. Impact of L-Citrulline Supplementation and HIIT on Lipid Profile, Arterial Stiffness, and Fat Mass in Obese Adolescents with Metabolic-Dysfunction-Associated Fatty Liver Disease: A Randomized Clinical Trial.
    Rodríguez-Carrillo AA; Espinoza-Vargas MR; Vargas-Ortiz K; Ibarra-Reynoso LDR; Olvera-Juárez M; Gómez-Ojeda A; Garay-Sevilla ME; Figueroa A · Nutrients · 2025
    Randomized trial44 participantsHeart Health forCitrulline
  29. Vascular effects of l-citrulline supplementation in healthy adults are largely influenced by the prehypertensive range of blood pressure: A double-blind, randomized, placebo-controlled, parallel-group study.
    Nogimura D; Nagaoka K; Ogino K; Ogino N; Moriyasu K; Morita M · Nutrition research (New York, N.Y.) · 2026
    Randomized trial66 participantsHeart Health forCitrulline
  30. The Assessment of short-term effect of L-Citrulline on endothelial function via FMD to NMD ratio in known CAD patients: A randomized, cross-over clinical trial (Clinical trial number: NCT02638727).
    Safi M; Mahjoob MP; Nateghi S; Khaheshi I; Akbarzadeh MA; Naderian M · Romanian journal of internal medicine = Revue roumaine de medecine interne · 2017
    Randomized trial30 participantsHeart Health forCitrulline
  31. Impact of L-citrulline supplementation and whole-body vibration training on arterial stiffness and leg muscle function in obese postmenopausal women with high blood pressure.
    Figueroa A; Alvarez-Alvarado S; Ormsbee MJ; Madzima TA; Campbell JC; Wong A · Experimental gerontology · 2015
    Randomized trial41 participantsMuscle Gain forCitrulline
  32. Citrulline Supplementation Improves Microvascular Function and Muscle Strength in Middle-Aged and Older Adults with Type 2 Diabetes.
    Figueroa A; Dillon KN; Levitt DE; Kang Y · Nutrients · 2025
    Randomized trial16 participantsMuscle Gain forCitrulline
  33. Citrulline stimulates muscle protein synthesis in the post-absorptive state in healthy people fed a low-protein diet - A pilot study.
    Jourdan M; Nair KS; Carter RE; Schimke J; Ford GC; Marc J; Aussel C; Cynober L · Clinical nutrition (Edinburgh, Scotland) · 2016
    Randomized trial8 participantsMuscle Gain forCitrulline
  34. Effects of Citrulline Supplementation on Body Weight in Patients With Hepatobiliary Pancreatic Surgery.
    Yang JA; Lee KE; Park JH; Yee J; Kim JY; Gwak HS · Nutrition in clinical practice : official publication of the American Society for Parenteral and Enteral Nutrition · 2020
    Cohort study138 participantsWeight Gain forCitrulline
  35. Impact of high-intensity interval training with or without l-citrulline on physical performance, skeletal muscle, and adipose tissue in obese older adults.
    Marcangeli V; Youssef L; Dulac M; Carvalho LP; Hajj-Boutros G; Reynaud O; Guegan B; Buckinx F; Gaudreau P; Morais JA; Mauriège P; Noirez P; Aubertin-Leheudre M; Gouspillou G · Journal of cachexia, sarcopenia and muscle · 2022
    Clinical trial81 participantsWeight Gain forCitrulline
  36. Synergistic effect of long-term L-citruline supplementation combined with exercise on body composition in adults: A systematic review and meta-analysis of randomized controlled trials.
    Wang W; Cai S; Liu K; Luo P · Complementary therapies in medicine · 2026
    Meta-analysis9 studies pooledWeight Gain forCitrulline
  37. Effects of Citrulline or Watermelon Supplementation on Body Composition: A Systematic Review and Dose-Response Meta-Analysis.
    Ashtary-Larky D; Mohammadi S; Mousavi SAH; Hajizadeh L; Candow DG; Forbes SC; Afrisham R; Farrokhi V; Antonio J; Suzuki K · Nutrients · 2025
    Meta-analysis21 studies pooledWeight Gain forCitrulline
  38. Impact of 3-week citrulline supplementation on postprandial protein metabolism in malnourished older patients: The Ciproage randomized controlled trial.
    Bouillanne O; Melchior JC; Faure C; Paul M; Canouï-Poitrine F; Boirie Y; Chevenne D; Forasassi C; Guery E; Herbaud S; Le Corvoisier P; Neveux N; Nivet-Antoine V; Astier A; Raynaud-Simon A; Walrand S; Cynober L; Aussel C · Clinical nutrition (Edinburgh, Scotland) · 2020
    Randomized trial24 participantsWeight Gain forCitrulline