Nutricost L-Arginine 1000 mg Review
Nutricost L-Arginine Tablets provide 1,000 mg of L-Arginine per tablet, which the page describes as a double strength dose. Each bottle contains 150 or 300 tablets, and the page states that this gives 150 or 300 servings of L-Arginine per bottle. The product is listed as non-GMO and gluten free and is made in a GMP compliant, FDA registered facility. Nutricost states that its products are made in the USA using globally sourced ingredients. The page says products are tested by an independent, accredited lab to help verify that what is on the label is what is in the bottle. Nutricost also describes a quality approach built on transparent labeling and reliable manufacturing, and the page lists a 60-day money back guarantee on all orders. Customers can choose between the 150 tablet and 300 tablet sizes. The page presents the product as a simple, accessible amino acid supplement, consistent with the brand's stated goal of clear labeling and fair prices without unnecessary fillers.
Study, Trial or Testing Result Summary
MembersHuman studies
12 of these 32 human studies gave l-arginine by drip or injection, not by mouth.
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Review Totals and Summary
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Supplement Facts
L-Arginine 1000 mg
| L-Arginine | 1,000 mg | † |
Other ingredients: Microcrystalline cellulose, hydroxypropyl methylcellulose, calcium carbonate, coating powder, sodium carboxymethyl starch, magnesium stearate.
Directions: As a dietary supplement, take 1 tablet daily with 8-12 oz of water or as directed by your healthcare professional.
Label source: the brand's label · Report a label change
Where to Buy
Nutricost · iHerb · Walmart
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Our articles on this subject
- Supplements for Focus and Mental ClarityArticle · Jun 16, 2026
Graded October 26, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.

