L-Arginine Powder
Scored by the Formulate Research Team · Last reviewed July 2026
Score Breakdown
Three factors carry this score; three more are checked separately and can only take points away. Hover or tap to see what drove each one.
Ingredients per Serving
Certifications & Testing
Recommended Use
Directions: Adults: Take one teaspoonful (one level scoopful) daily mixed into food or liquid.
Warnings
Warning: Do not take if you are pregnant or lactating or are sensitive to arginine.
Frequently Asked Questions
What is Carlson L-Arginine Powder's Formulate score?
Carlson L-Arginine Powder scores 80 out of 100 (grade A-) on Formulate's ingredient-level rubric: clinical evidence, dose accuracy and bioavailability carry the score, while manufacturing, transparency and safety are checked separately and can only deduct.
Is Carlson L-Arginine Powder worth it?
Carlson L-Arginine Powder scores 80/100 (grade A-). That puts it in Formulate's top tier: its ingredient doses, forms, and label transparency hold up against the clinical evidence, and it carries credible third-party testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.
What's in Carlson L-Arginine Powder?
Each serving contains L-Arginine (3 g). Serving size: 3 Gram(s). 33 servings per container.
How do I take l-arginine powder?
Directions: Adults: Take one teaspoonful (one level scoopful) daily mixed into food or liquid.
Who makes L-Arginine Powder?
L-Arginine Powder is made by Carlson. See Formulate's full grade and product lineup for Carlson on its brand page.
Is Carlson L-Arginine Powder third-party tested?
Carlson lists the following certifications and testing for this product: Gluten-Free.
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Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.