L-Citrulline
Source Naturals L-Citrulline is a protein supplement supporting nitric oxide production. It may benefit athletes and individuals seeking cardiovascular support and improved exercise performance. This amino acid is a precursor to L-arginine.
About This Product
L-Citrulline by Source Naturals is a protein supplement containing 1 active ingredients. It has earned an N+ Score of 29/100 (Grade F).
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
- +Fully transparent label with individual ingredient amounts disclosed
Weaknesses
- −Several ingredients below clinically effective doses
- −Missing several expected ingredients for its category
Ingredient Analysis (1 ingredients)
| Ingredient | Amount | Dose Adequacy |
|---|---|---|
| L-Citrulline | 2.250 Gram(s) | Under |
Clinical ranges based on NIH ODS Fact Sheets and peer-reviewed research. Status indicates whether the amount meets evidence-based thresholds.





