L-Arginine 500 mg
Swanson Premium Brand L-Arginine 500 mg is a straightforward Amino acid/Protein supplement containing a single active ingredient. Each 1-capsule serving delivers 500mg of L-Arginine, which is provided at a clinically studied dose. Research suggests L-Arginine may play a role in nitric oxide production, potentially supporting cardiovascular function and exercise performance. The product has an N+ Score of 64, earning it a 'D' grade, indicating an average quality tier. This supplement is ideal for individuals looking for a specific, single-ingredient L-Arginine product at a studied dosage.
About This Product
L-Arginine 500 mg by Swanson Premium Brand is a protein supplement containing 1 active ingredients. It has earned an N+ Score of 64/100 (Grade D).
This product features a fully transparent label with individual ingredient amounts disclosed, and key ingredients are present at clinically effective doses based on peer-reviewed research.
Notable clinical-dose ingredients include L-Arginine.
N+ Score Breakdown
Are key ingredients present at clinically effective doses based on research?
Does the product include all expected ingredients for its supplement category?
Are individual ingredient amounts clearly disclosed without proprietary blends?
Does the formula include a breadth of beneficial compounds from multiple pathways?
Strengths
- +Key ingredients at clinically effective doses
- +Fully transparent label with individual ingredient amounts disclosed
- +1 ingredient(s) at clinical dose levels
Weaknesses
- −Missing several expected ingredients for its category
Ingredient Analysis (1 ingredients)
| Ingredient | Amount | Dose Adequacy |
|---|---|---|
| L-Arginine | 500.000 mg | High |
Clinical ranges based on NIH ODS Fact Sheets and peer-reviewed research. Status indicates whether the amount meets evidence-based thresholds.





