$30.60 $1.02 per serving
Product analysis
Nitri Oxide Support combines arginine and citrulline for possible blood-flow support, though evidence for noticeable everyday energy benefits is limited and inconsistent.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality40
All three ingredient preparations are identified, allowing clear comparisons of what is included. The named forms alone do not establish a quality advantage.
Ingredient Transparency100
Ingredient amounts and forms are disclosed. The citrulline-malate declaration still leaves its comparable active exposure uncertain.
Value For Money34
Citrulline is costly relative to its contribution, limiting the formula’s value. Arginine offers middling value, while vitamin C remains uncertain.
Customer Satisfaction69
Customer feedback is very positive. Only a few dozen ratings leave a small base for judging satisfaction.
Product Focus67
The formula concentrates on possible blood-flow support rather than a reliable daily energy effect. The modest citrulline amount and malate preparation make comparison with the small trials uncertain.
- Format
Powder - Container
- 5 Ounce(s)
- Per serving
- $1.02
- Customer rating
- 4.7 · 26 ratings
Goals
Impact
High effect
Arginine · 2050 mgVitamin C · 200 mgCitrulline · 715 mg
Impact
High effect
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Vitamin C (Ascorbic Acid) | 200 mg | |
L-Arginine (Arginine Alpha-Ketoglutarate) | 2050 mg | |
Citrulline (Citrulline Malate) | 715 mg |
Arginine (Arginine Alpha-Ketoglutarate) · 2050 mg OverallScore80
Each serving supplies 2050 mg of arginine at a moderately high cost for the amount supplied. The form is Arginine Alpha-Ketoglutarate. The amount is clearly stated.
How this ingredient is rated
Active Ingredient Quality & Bioavailability90
The form is Arginine Alpha-Ketoglutarate.
Arginine Form & Sourcing Purity
The form is Arginine Alpha-Ketoglutarate.
Dose, Safety & Label Transparency85
Each serving provides 2050 mg, a substantial amount.
Arginine Dose Per Serving
Each serving provides 2050 mg, a substantial amount.
Value50
The cost is moderately high for the arginine amount, using the full serving price.
Price Per Gram of Arginine
The cost is moderately high for the arginine amount, using the full serving price.
Citrulline (Citrulline Malate) · 715 mg OverallScore36
The serving lists 715 mg of citrulline malate; the amount of L-citrulline is uncertain without the ratio. The estimated cost per gram of L-citrulline is high, but may be understated because the malate ratio is unknown. Citrulline malate is named, but its citrulline-to-malate ratio is not specified. No citrulline sourcing, grade, or purity details are available.
How this ingredient is rated
Active Ingredient Quality & Bioavailability49
Citrulline malate is named, but its citrulline-to-malate ratio is not specified. No citrulline sourcing, grade, or purity details are available.
Citrulline Form Specificity
Citrulline malate is named, but its citrulline-to-malate ratio is not specified.
Purity and Sourcing Markers
No citrulline sourcing, grade, or purity details are available.
Dose, Safety & Label Transparency40
The serving lists 715 mg of citrulline malate; the amount of L-citrulline is uncertain without the ratio. The ratio is needed to determine the active amount.
L-Citrulline Dosage Efficacy
The serving lists 715 mg of citrulline malate; the amount of L-citrulline is uncertain without the ratio.
Label Clarity and Transparency
The mixture amount is listed, but its ratio is missing, so its L-citrulline content is unclear.
Value0
The estimated cost per gram of L-citrulline is high, but may be understated because the malate ratio is unknown.
Price per Gram of L-Citrulline
The estimated cost per gram of L-citrulline is high, but may be understated because the malate ratio is unknown.
Alternative products
Report alternatives
Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- Reassessment of the effect of oral l-arginine on blood pressure: A systematic review and meta-analysis based on ambulatory blood pressure monitoring.
- Effect of Long-Term L-Arginine Supplementation on Arterial Compliance and Metabolic Parameters in Patients with Multiple Cardiovascular risk Factors: Randomized, Placebo-Controlled Study.
- Increase in fasting vascular endothelial function after short-term oral L-arginine is effective when baseline flow-mediated dilation is low: a meta-analysis of randomized controlled trials.
- L-arginine improves endothelial function and reduces LDL oxidation in patients with stable coronary artery disease.
- Oral L-Arginine Administration Improves Anthropometric and Biochemical Indices Associated With Cardiovascular Diseases in Obese Patients: A Randomized, Single Blind Placebo Controlled Clinical Trial.
- 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.
- Micronutrient Supplementation to Reduce Cardiovascular Risk.
- l-Citrulline supplementation improves O2 uptake kinetics and high-intensity exercise performance in humans.
- Effects of L-Citrulline Supplementation on Endothelial Function and Blood Pressure in Hypertensive Postmenopausal Women.
- Short-term effects of L-citrulline supplementation on arterial stiffness in middle-aged men.
- Vitamin C may reduce troponin and CKMB levels after PCI and CABG: a meta-analysis.
- Vitamin C improves endothelium-dependent vasodilation by restoring nitric oxide activity in essential hypertension.
- 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.
- Vascular benefits of vitamin C supplementation against fine particulate air pollution in healthy adults: A double-blind randomised crossover trial.
- Ascorbic acid reduces blood pressure and arterial stiffness in type 2 diabetes.
- Investigation of the effect of nitrate and L-arginine intake on aerobic, anaerobic performance, balance, agility, and recovery in elite taekwondo athletes.
- The Effects of Arginine-Based Supplements on Fatigue Levels following COVID-19 Infection: A Prospective Study in Romania.
- Isolated but not combined ergogenic effects of caffeine and L-arginine during an isokinetic knee extension.
- L-Arginine but not L-glutamine likely increases exogenous carbohydrate oxidation during endurance exercise.
- Effect of L-arginine on energy metabolism, skeletal muscle and brown adipose tissue in South Asian and Europid prediabetic men: a randomised double-blinded crossover study.