Product analysis
L-Arginine Pure Powder offers inexpensive arginine, which the body uses to make a substance involved in blood-vessel function. Exercise results are inconsistent, so a reliable energy or performance boost should not be expected.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality20
Arginine form quality cannot be judged confidently because its preparation is unspecified. The ingredient name alone does not establish a quality advantage.
Ingredient Transparency63
The stated amount makes serving comparisons easier. Missing form detail limits a closer comparison of the preparation.
Value For Money100
Arginine is inexpensive by the gram. That supports favorable value if arginine is the ingredient you want to buy.
Customer Satisfaction73
Customer feedback is very positive across a moderate number of ratings. The feedback does not establish better exercise performance.
Product Focus67
A single ingredient keeps the formula focused on arginine and its connection to blood-vessel function. The mechanism does not reliably predict better energy, strength or endurance.
- Format
Powder - Container
- 1 lb(s)
- Per serving
- $0.17
- Customer rating
- 4.7 · 158 ratings
Goals
Arginine is a precursor used to make nitric oxide, which is involved in blood-vessel function. That mechanism does not establish a routine cardiovascular benefit from this 4.6 g serving. A small trial in healthy adults did not show significant blood-pressure reduction at higher daily amounts, so the saved contribution should not be read as demonstrated blood-pressure or cardiovascular-event protection.
How this product is rated for Cardiovascular Support
Ingredient fit93
Goal fit
Dose adequacy
Pathways48
Depth
Breadth
Evidence74
Evidence strength
Studied preparation
Formulation logic100
Partner coverage
Conflicts
Effective doses
Arginine at 4.6 g is a nitric-oxide precursor with a connection to blood flow. Performance trials are limited and conflicting, so this mechanism does not reliably predict better endurance, strength or workout results.
How this product is rated for Fitness
Ingredient fit86
Goal fit
Dose adequacy
Pathways44
Depth
Breadth
Evidence60
Evidence strength
Studied preparation
Formulation logic100
Partner coverage
Conflicts
Effective doses
Arginine participates in nitric oxide production, which connects it to blood flow during exercise. Performance findings are limited and inconsistent, so its 4,600 mg per serving does not establish a dependable increase in energy or reduction in fatigue.
How this product is rated for Energy
Ingredient fit96
Goal fit
Dose adequacy
Pathways60
Depth
Breadth
Evidence66
Evidence strength
Studied preparation
Formulation logic100
Partner coverage
Conflicts
Effective doses
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
L-Arginine Hydrochloride | 4600 mg |
How this ingredient is rated
Active Ingredient Quality & Bioavailability70
Arginine Form & Sourcing Purity
Dose, Safety & Label Transparency100
Arginine Dose Per Serving
Value100
Price Per Gram of Arginine
Alternative products
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.
- 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.
- The effect of L-arginine supplementation on maximal oxygen uptake: A systematic review and meta-analysis.
- L-Arginine Enhances the Effects of Cardiac Rehabilitation on Physical Performance: New Insights for Managing Cardiovascular Patients During the COVID-19 Pandemic.
- THE EFFECT OF A SINGLE ORAL DOSE OF L-ARGININE ON QUADRICEPS STRENGTH IN SMOKERS AND NON-SMOKERS: A NON-RANDOMIZED CLINICAL TRIAL.
- Efficacy of amino acids in sports nutrition- review of clinical evidences.
- Chronic L-arginine supplementation enhances endurance exercise tolerance in heart failure patients.