Natra NITROpro Nitric Oxide Booster for Men - L-Citrulline, L-Arginine, Beetroot, HMB
Visit the Natra Store Read all reviews on Amazon ->| Brand | Natra |
| Serving | 4 V-capsules (2 twice daily) |
| Licensed Natural Health Product | NPN 80134719 |
| Quality Standards | GMP-compliant facility |
| Country | Made in Canada  |
Why people choose NITROpro
- No jitters, no crash: It supports training without the stimulants of typical pre-workouts - caffeine-free, and reviewers note it does not disrupt their sleep.
- Train harder, recover faster: Customers report training harder, feeling less fatigued and recovering faster after tough sessions as part of their routine.
- Circulation and endurance: The L-Arginine, L-Citrulline and beetroot blend is chosen to support blood flow, endurance and nutrient delivery to working muscles.
- One complete stack: Buyers like that the key aminos and plant nutrients - L-Arginine, L-Citrulline, beetroot, beta-alanine, HMB and L-theanine - come in a single formula.
- Easy vegan capsules: Reviewers find the capsules easy to take and convenient - no mixing or measuring, an easy add to a daily workout routine.
About this item
- NITRIC OXIDE SUPPLEMENT FOR MEN: L-Arginine, L-Citrulline and beetroot work on the body's nitric oxide pathway to support healthy blood flow and oxygen delivery to working muscles - the amino nitric oxide stack active men search for.
- HIGH-DOSE AMINO BLEND, 1600 MG PER SERVING: Four vegan capsules deliver L-Arginine 1000 mg plus L-Citrulline 600 mg combined, with beetroot, beta-alanine, HMB and L-theanine - transparent per-serving amounts you can compare at a glance.
- CAFFEINE-FREE PUMP AND ENDURANCE: A stimulant-free nitric oxide booster - beta-alanine and the amino base support training capacity and endurance for the gym, cardio or sport with no caffeine, no jitters and no afternoon crash.
- HMB FOR MUSCLE RECOVERY: Includes HMB (beta-hydroxy beta-methylbutyrate), the leucine metabolite lifters search for, to support muscle recovery and lean strength alongside a consistent resistance-training routine.
- BEETROOT FOR CIRCULATION AND STAMINA: Natural beetroot nitrate is traditionally used to support blood flow, circulation and stamina - the plant-based side of the NOx formula for endurance and everyday performance.
- TRANSPARENT LABEL, NO PROPRIETARY BLEND: Every amount is printed - L-Arginine 250 mg, L-Citrulline 150 mg, beta-alanine 100 mg, beetroot 100 mg, HMB 50 mg and L-theanine 50 mg per capsule, with no proprietary-blend hiding.
- CAPSULES, NOT POWDER OR SHOTS: Pre-measured vegan V-capsules skip the mixing, scooping and grit of nitric oxide powders and beet-juice shots - a consistent dose every serving that travels easily.
- L-THEANINE FOR CALM, FOCUSED TRAINING: L-theanine rounds out the blend for a calm, focused feel without stimulants - clean nitric oxide support you can stack with any pre-workout or take on its own.
- MADE IN CANADA, LICENSED (NPN 80134719): Manufactured in a GMP-compliant Canadian facility to high quality and safety standards - a licensed Natural Health Product in vegan V-caps, dairy-free, gluten-free and yeast-free.
- FOR MEN WHO LIFT, RUN AND TRAIN: If you searched nitric oxide supplement, L-arginine, L-citrulline, beetroot capsules, NOx booster, beta-alanine or HMB for men, NITROpro brings that stack together in one vegan capsule.
Product Description
Nitric Oxide Supplement for Men
Nitric oxide support for men. A transparent L-Arginine, L-Citrulline and beetroot nitric oxide supplement for blood flow, pumps and workout performance - every dose printed on the label. Licensed Natural Health Product NPN 80134719.
Soutien de l'oxyde nitrique pour hommes. Un supplément d'oxyde nitrique transparent à base de L-arginine, L-citrulline et betterave pour la circulation et la performance - chaque dose imprimée sur l'étiquette.
Nitric Oxide & HMB Supplement for Men
Advanced L-Arginine, L-Citrulline and beetroot formula with beta-alanine, HMB and L-theanine.
NITRIC OXIDE SUPPLEMENT FOR MEN
L-Arginine, L-Citrulline and beetroot work on the body's nitric oxide pathway to support healthy blood flow and oxygen delivery to working muscles - the amino nitric oxide stack active men search for.
HIGH-DOSE AMINO BLEND, 1600 MG PER SERVING
Four vegan capsules deliver L-Arginine 1000 mg plus L-Citrulline 600 mg combined, with beetroot, beta-alanine, HMB and L-theanine - transparent per-serving amounts you can compare at a glance.
Advanced Ingredients, Superior Results
A transparent, high-dose amino blend - L-Arginine and L-Citrulline feed the nitric oxide pathway, with beetroot, beta-alanine, HMB and L-theanine rounding out the formula.
L-Arginine
Amino acid substrate in the nitric oxide pathway that supports blood flow.
250 mg / V-capL-Citrulline
Converts to arginine to help sustain nitric oxide production and circulation.
150 mg / V-capBeetroot
Natural dietary nitrate source, traditionally used to support blood flow and stamina.
100 mg / V-cap
Beta-Alanine
Amino acid studied for buffering muscle acidity during higher-intensity training.
100 mg / V-capHMB
A leucine metabolite included to support muscle recovery alongside training.
50 mg / V-capL-Theanine
Amino acid that supports a calm, focused feel without caffeine.
50 mg / V-capNatra NITROpro: Supplement Facts
Each V-capsule contains:
- L-Arginine (L-Arginine monohydrochloride)250 mg
- L-Citrulline (L-Citrulline malate)150 mg
- Beta-Alanine (3-aminopropanoic acid)100 mg
- Beetroot (Beta vulgaris - root)100 mg
- HMB (hydroxy-beta-methylbutyrate)50 mg
- L-Theanine50 mg
Non-Medicinal Ingredients: Hypromellose, Microcrystalline cellulose, Stearic acid, Silicon dioxide.
Recommended Use or Purpose: NITROpro is specifically formulated to help enhance muscle strength and improve overall performance. When paired with a consistent resistance-training routine, it supports greater strength gains. Licensed Natural Health Product, NPN 80134719.
Recommended Dose: Take 2 V-capsules 2 times per day with food, or as directed by a qualified health-care practitioner.
Cautions and Warnings: Consult a health-care practitioner before use if you are taking cholesterol medications or are taking medication for cardiovascular disease, erectile dysfunction, and/or blood thinners, or if you are attempting an increase in physical activity. Known Adverse Reactions: Some people may experience insomnia, anxiety or headaches, in which case discontinue use. Keep out of reach of children. Store in a cool, dry place. Product has been sealed for your protection - do not use if the seal is broken.
Actual product packaging and materials may contain more and different information than shown on our website. Always read labels, warnings and directions before using or consuming a product. This item is sold and shipped by Amazon.ca; purchases are completed on Amazon.
Chaque V-Capsule contient :
- L-arginine (monochlorhydrate de L-arginine)250 mg
- L-citrulline (malate de L-citrulline)150 mg
- Bêta-alanine (acide 3-aminopropanoïque)100 mg
- Betterave (Beta vulgaris - tubercule)100 mg
- HMB (hydroxyméthylbutyrate)50 mg
- L-théanine50 mg
Ingrédients non médicinaux : hypromellose, cellulose microcristalline, acide stéarique, dioxyde de silicium.
Usage ou fins recommandés : NITROpro est spécifiquement formulé pour améliorer la force musculaire et les performances globales. Lorsqu'il est associé à une routine d'entraînement en résistance cohérente, il soutient de plus grands gains de force. Produit de santé naturel homologué, NPN 80134719.
Dose recommandée : Prendre 2 V-Capsules deux fois par jour avec des aliments, ou selon les indications d'un praticien de soins de santé qualifié.
Mises en garde : Consulter un praticien de soins de santé avant emploi pendant la prise d'anticholestérolémiants ou de médicaments pour les maladies cardiovasculaires, la dysfonction érectile et/ou d'anticoagulants, ou si l'on essaie d'augmenter son activité physique. Réactions indésirables connues : ce produit peut provoquer l'insomnie, l'anxiété ou les maux de tête. Dans un tel cas, cesser l'emploi. Garder hors de la portée des enfants. Conserver au frais et au sec. Ce produit a été scellé pour votre protection - ne pas utiliser si le dispositif d'inviolabilité est brisé.
NPN 80134719
Support nitric oxide, circulation and training the easy way
Get Natra NITROpro on Amazon.ca - fast, protected delivery.
Get it on Amazon.caInside every serving
A transparent amino blend - L-Arginine 1000 mg and L-Citrulline 600 mg combined, plus beetroot, beta-alanine, HMB and L-theanine, in 4 vegan capsules.
How NITROpro compares
Why a transparent, capsule-based nitric oxide formula matters.
| Natra NITROpro | Proprietary blends | Beet-juice shots | |
|---|---|---|---|
| L-Arginine + L-Citrulline disclosed | 1000 mg + 600 mg / serving | Often a hidden blend | Usually none |
| Per-serving amounts printed | Every ingredient | Proprietary blend | Varies |
| Caffeine | Caffeine-free | Often stimulant-loaded | Caffeine-free |
| Format | Pre-measured V-capsules | Powder to mix | Liquid shots |
| Sourcing and quality | Made in Canada - GMP - NPN | Varies | Varies |
How to use
Take 2 capsules
Adults take 2 V-capsules with food, twice per day (4 capsules daily).
Pair with food
Take with a meal or snack - no mixing, scooping or beet-juice grit required.
Time around training
Use on training days as part of your routine; stack with any pre-workout or take it on its own.
Stay consistent
Use daily as directed; one bottle of 60 V-capsules provides 15 servings.
What the research says about the ingredients in NITROpro
Peer-reviewed studies and reviews on the amino acids and ingredients in this nitric oxide formula for men - L-Citrulline, L-Arginine, dietary nitrate (beetroot), beta-alanine, HMB and L-theanine. These summaries are shared for education, not as claims about this finished product. NITROpro's claims are the statements authorized under its Natural Health Product licence, NPN 80134719.
L-Citrulline improved cycling time-trial performance
In trained men, 7 days of oral L-citrulline plus a pre-exercise dose raised plasma L-arginine - the nitric oxide precursor - and reduced 4 km cycling time by about 1.5 percent versus placebo.
Human RCTL-Citrulline preserved blood flow to the gut in exercise
A crossover trial in cyclists found 10 g of L-citrulline raised L-arginine availability and helped preserve blood flow to the gut (splanchnic perfusion) while attenuating a marker of intestinal injury during exercise.
Human RCTL-Citrulline raised leg blood flow in older men
Fourteen days of L-citrulline (6 g/day) increased femoral blood flow and vascular conductance during leg exercise in older men, with no change observed in older women.
Human RCTL-Citrulline: no effect on blood-lactate clearance
A placebo-controlled study reported that L-citrulline did not significantly change blood-lactate removal during active recovery, oxygen cost, peak oxygen uptake or time to exhaustion.
Human RCTL-Citrulline: no change in running in the heat
Seven days of L-citrulline (6 g/day) had no effect on 3 km running performance, thermoregulation or gut damage in trained runners in a hypohydrated state.
Human RCTWhy L-Citrulline raises L-Arginine and nitric oxide
A review explains that oral L-citrulline escapes first-pass extraction and recycles to L-arginine, raising L-arginine and nitric oxide more effectively than L-arginine taken directly.
ReviewL-Arginine increased muscle blood flow (the pump) after exercise
A placebo-controlled trial found acute L-arginine (6 g) increased muscle blood volume - the post-exercise pump - during recovery from resistance exercise, although it did not improve strength performance.
Human RCTL-Arginine raised plasma L-arginine levels
Seven days of an arginine-alpha-ketoglutarate supplement raised plasma L-arginine in active men, though the changes in blood flow and nitric oxide markers were attributed to the exercise itself.
Human RCTL-Arginine and endothelial function: a mixed meta-analysis
A systematic review and meta-analysis in people with cardiovascular or metabolic disorders found oral L-arginine did not consistently improve flow-mediated dilation overall, with positive effects only in sensitivity analyses.
Meta-analysisHow L-Arginine, L-Citrulline and nitrate raise nitric oxide
A critical review describes how dietary L-arginine, L-citrulline and nitrate can raise nitric oxide bioavailability and influence flow-mediated dilation and arterial stiffness in at-risk adults.
ReviewThe dietary nitrate-to-nitric-oxide route (beetroot)
A review explains the pathway by which dietary inorganic nitrate is reduced to nitrite and then nitric oxide - an alternative route studied for blood pressure, vascular health and exercise capacity.
ReviewA single L-Arginine bolus did not raise nitric oxide markers
In young men, a 10 g oral L-arginine bolus did not increase nitric oxide markers or muscle blood flow at rest or after resistance exercise beyond feeding alone.
Human RCTBeetroot nitrate improved intense intermittent performance
Nitrate-rich beetroot juice raised plasma nitrite and improved Yo-Yo intermittent recovery test distance by about 4 percent versus placebo in team-sport players.
Human RCTBeetroot improved cycling time-trial performance
Seven days of high-dose beetroot juice raised plasma nitrate and nitrite and improved 10 km cycling time-trial performance by about 1.6 percent in well-trained cyclists.
Human RCTBeetroot nitrate increased bench-press repetitions
Acute nitrate-rich beetroot juice increased bench-press repetitions to failure by about 5 percent versus a nitrate-depleted placebo in recreationally active men.
Human RCTBeetroot: no gain in maximal strength or jump
Despite large rises in plasma nitrate and nitrite, beetroot juice did not improve maximal strength, countermovement jump or muscular endurance in healthy active men.
Human RCTBeetroot: no effect in elite female hockey players
Acute beetroot juice produced no statistically significant improvement in jump, sprint, repeated-sprint or match-play demands in elite female field-hockey players.
Human RCTBeetroot lowered the oxygen cost of exercise (clinical group)
In a COPD pilot trial, acute beetroot juice did not extend endurance time but did lower the oxygen cost of submaximal exercise and reduce resting diastolic blood pressure.
Human RCTBeta-Alanine: small overall ergogenic effect
A systematic review and meta-analysis of 40 studies found beta-alanine had a small but significant overall effect on exercise measures, most evident for efforts lasting roughly 0.5 to 10 minutes.
Meta-analysisBeta-Alanine raises muscle carnosine to buffer acidity
A review explains that beta-alanine availability limits muscle carnosine synthesis, and that supplementation raises carnosine to support intracellular pH buffering during high-intensity exercise.
ReviewBeta-Alanine benefits 1-to-4-minute efforts
An earlier meta-analysis reported a median 2.85 percent improvement in exercise outcomes, with benefits for exercise lasting 60 to 240 seconds and no benefit below 60 seconds.
Meta-analysisHMB supports muscle protein balance and recovery
An International Society of Sports Nutrition position stand concludes HMB acts mainly by enhancing muscle protein synthesis and suppressing breakdown, and may aid recovery and body composition alongside training.
Position standHMB plus resistance training in older adults
A randomized, placebo-controlled trial found 12 weeks of HMB plus resistance training improved handgrip strength, gait speed and muscle quality versus placebo in older adults with sarcopenia.
Human RCTL-Theanine with caffeine supported focused attention
A placebo-controlled crossover study found L-theanine combined with caffeine improved speed and accuracy on an attention-switching task and reduced distraction in a memory task.
Human RCTFrequently asked questions
What is Natra NITROpro?
It is a caffeine-free nitric oxide formula for men that combines L-Arginine, L-Citrulline, beetroot, beta-alanine, HMB and L-theanine in vegan V-capsules. It is a licensed Natural Health Product, NPN 80134719.
How do I take it?
Adults take 2 V-capsules twice per day (4 capsules daily) with food, or as directed by a health-care practitioner.
How much L-Arginine and L-Citrulline does it contain?
Each serving of 4 V-capsules provides 1000 mg of L-Arginine and 600 mg of L-Citrulline combined, plus beetroot 400 mg, beta-alanine 400 mg, HMB 200 mg and L-theanine 200 mg.
Does it contain caffeine?
No. NITROpro is caffeine-free, so you can stack it with any pre-workout or take it on its own without added stimulants.
Is it vegan and allergen-friendly?
It is made with plant-based vegan V-capsules and is dairy-free, gluten-free and yeast-free, with no artificial colours or preservatives.
How long does one bottle last?
Each bottle has 60 V-capsules - 15 servings at the recommended 4 capsules per day.
Who should not use it?
Consult a health-care practitioner before use if you are taking cholesterol medications or medication for cardiovascular disease, erectile dysfunction, and/or blood thinners, or if you are attempting an increase in physical activity. Some people may experience insomnia, anxiety or headaches; if so, discontinue use.
Where do I buy it?
Use the orange button on this page - it takes you to the Natra listing on Amazon.ca for secure checkout and fast delivery.
Support nitric oxide, circulation and training the easy way
Get Natra NITROpro on Amazon.ca - fast, protected delivery.
Get it on Amazon.caNatural Health Product NPN 80134719. Natra NITROpro is formulated to help enhance muscle strength and improve overall performance when paired with a consistent resistance-training routine. The research summaries below concern the individual amino acids and ingredients in this formula and are educational - they are not claims about this finished product. Read and follow the label. Consult a health-care practitioner before use if you are taking cholesterol medications or medication for cardiovascular disease, erectile dysfunction, and/or blood thinners, or if you are attempting an increase in physical activity. Some people may experience insomnia, anxiety or headaches. Results may vary.
Important information
Safety Information
Consult a health-care practitioner before use if you are taking cholesterol medications or are taking medication for cardiovascular disease, erectile dysfunction, and/or blood thinners, or if you are attempting an increase in physical activity. Known Adverse Reactions: Some people may experience insomnia, anxiety or headaches, in which case discontinue use. Keep out of reach of children. Store in a cool, dry place. Product has been sealed for your protection - do not use if the seal is broken.
Indications
NITROpro is specifically formulated to help enhance muscle strength and improve overall performance. When paired with a consistent resistance-training routine, it supports greater strength gains. Licensed Natural Health Product, NPN 80134719.
Ingredients
Medicinal ingredients (per V-capsule): L-Arginine (L-Arginine monohydrochloride) 250 mg, L-Citrulline (L-Citrulline malate) 150 mg, Beta-Alanine (3-aminopropanoic acid) 100 mg, Beetroot (Beta vulgaris - root) 100 mg, HMB (hydroxy-beta-methylbutyrate) 50 mg, L-Theanine 50 mg. Non-medicinal ingredients: Hypromellose, Microcrystalline cellulose, Stearic acid, Silicon dioxide. Vegan V-capsules; dairy-free, gluten-free and yeast-free. NMIs are subject to change - always read and follow the label.
Directions
Take 2 V-capsules 2 times per day with food, or as directed by a qualified health-care practitioner.
Legal Disclaimer
Actual product packaging and materials may contain more and different information than shown on our website. Always read labels, warnings and directions before using or consuming a product. This item is sold and shipped by Amazon.ca; purchases are completed on Amazon.