Skip to main content
Thorne L-Arginine Plus

L-Arginine Plus

86Score
Grade A- · capsule · 60 servings · $75.00

L-Arginine Plus scores 86/100 (B grade). Strengths: Mixed evidence quality (4 A, 2 B).

L-ArginineHeart HealthBlood Pressure

Score Breakdown

Formulate scores every product across six weighted dimensions. Each dimension is graded independently — hover or tap to see what drove each component.

Evidence Qualityweight 25%
91/ 100
Dose Accuracyweight 20%
81/ 100
Bioavailabilityweight 20%
91/ 100
Transparencyweight 10%
100/ 100
Safetyweight 10%
76/ 100
Manufacturingweight 10%
80/ 100
Valueweight 5%
90/ 100

Ingredients per Serving

IngredientAmount
L-Arginine1 g
Green Tea Phytosome (decaffeinated / Phospholipid complex from Sunflower)200 mg
Trans-Resveratrol50 mg
Vitamin C (as Ascorbic Acid)300 mg
R-Lipoic Acid (Sodium)50 mg
Folate (L-5-MTHF)920 mcg DFE

Certifications & Testing

NSF CertifiedGluten FreeDairy FreeSoy FreeThorne VerifiedNatural FlavorsNatural ColorsGMP Certified

Other Ingredients

High and Low Viscosity Hydroxypropyl Methylcellulose, Hypromellose (derived from cellulose) capsule, Leucine, Silicon Dioxide

Recommended Use

Take 3 capsules two times daily or as recommended by your health-care practitioner.

Warnings

ALLERGY WARNING This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients. PREGNANCY If pregnant, consult your health-care practitioner before using this product. INTERACTIONS 5-methyltetrahydrofolate (5-MTHF) supplementation is not recommended concurrent with methotrexate cancer therapy, as it can interfere with methotrexate's anti-neoplastic ac

Frequently Asked Questions

What is Thorne L-Arginine Plus's Formulate score?

Thorne L-Arginine Plus scores 86 out of 100 (grade A-) on Formulate's ingredient-level rubric, which weighs evidence quality, dose accuracy, bioavailability, transparency, safety, and manufacturing practices.

What's in Thorne L-Arginine Plus?

Each serving contains L-Arginine (1 g), Green Tea Phytosome (decaffeinated / Phospholipid complex from Sunflower) (200 mg), Trans-Resveratrol (50 mg), Vitamin C (as Ascorbic Acid) (300 mg), and more. Serving size: 3 Capsules. 60 servings per container.

How do I take l-arginine plus?

Take 3 capsules two times daily or as recommended by your health-care practitioner.

Is Thorne L-Arginine Plus third-party tested?

Thorne lists the following certifications and testing for this product: NSF Certified, Gluten Free, Dairy Free, Soy Free, Thorne Verified, Natural Flavors, Natural Colors, GMP Certified.

Related Supplements

Track l-arginine plus in your stack

The Formulate desktop app lets you build a personalized supplement stack, flag dose overlaps and interactions, and keep every product scored against the latest evidence.

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.