Arginine & Citrulline 500/250
Arginine & Citrulline 500/250 from NOW Sports is an amino acid supplement, categorized under Protein, containing two active ingredients. It achieves an N+ Score of 67, earning a C- grade, which signifies an average product. Both L-Arginine at 500.000mg and L-Citrulline at 250.000mg are present at clinically studied dosages, which research suggests may support nitric oxide production and exercise performance. The product boasts 100% label transparency, providing clear dosage information for both ingredients. While ingredient adequacy is high at 100%, its formula completeness is 0% due to the focused, two-ingredient profile. This supplement may be beneficial for individuals looking for targeted amino acid support with evidence-based dosages.
About This Product
Arginine & Citrulline 500/250 by NOW Sports 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 | 250.000 mg | High |
Clinical ranges based on NIH ODS Fact Sheets and peer-reviewed research. Status indicates whether the amount meets evidence-based thresholds.