GNC L-Arginine & L-Citrulline is an amino acid supplement. Each serving provides 500mg of L-Arginine and 500mg of L-Citrulline. This product has an N+ Score of 67.
About This Product
L-Arginine & L-Citrulline by GNC is a protein supplement containing 2 active ingredients. It has earned an N+ Score of 67/100 (Grade C-).
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, L-Citrulline.
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
- +2 ingredient(s) at clinical dose levels
Weaknesses
- −Missing several expected ingredients for its category
Ingredient Analysis (2 ingredients)
| Ingredient | Amount | Dose Adequacy |
|---|---|---|
| L-Arginine | 500.000 mg | High |
| L-Citrulline | 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.