L-Arginine

Name: L-Arginine
Brand: Pure
SKU: 248685
Availability: InStock

Brand: Pure

Adult (18 - 50 Years)Increase energy levels with 100% pure & naturalAmino acid/Protein

Quality score

85/100

DSLD

248685

UPC

—

Form

Capsule

Serving size

2 Capsule(s)

≈ 183 servings

Net contents

365 Capsule(s)

Standard Pack

Top DV

Vitamins

Per serving

Directions

Suggested use: Take 2 capsules twice daily, or as directed by a physician. Take with at least 8 oz of liquid.

NIH DSLD-backedSource links included

Updated: 2026-01-16

Dr. Feb's Analysis

Scientific Mechanism

L-Arginine serves as a precursor to nitric oxide (NO), a molecule that signals smooth muscle cells in blood vessels to relax, promoting vasodilation. At the cellular level, endothelial cells convert L-Arginine into NO via nitric oxide synthase (NOS) enzymes. This process enhances blood flow, supports oxygen delivery to tissues, and aids in the synthesis of proteins, creatine, and urea. By improving circulation, it may contribute to cardiovascular health and energy metabolism without artificial fillers.

Key Benefits

Key benefits include:

Improved circulation and blood flow for cardiovascular support
Enhanced energy levels and reduced fatigue
Support for healthy blood pressure and endothelial function
Potential aid in exercise performance and recovery

Usage & Safety

Take 2 capsules daily with water, preferably on an empty stomach or 30-60 minutes before meals/exercise for better absorption. Do not exceed recommended dosage. Consult a physician if pregnant, nursing, taking medications (e.g., nitrates, blood pressure drugs), or have medical conditions like herpes or recent heart attack. For adults only; store in a cool, dry place.

Daily value highlights

No daily values established.

Receipts

Official label PDF

NIH DSLD label snapshot (primary source)

Open PDF ↗

Frequently Asked Questions

What are the key benefits of L-Arginine?▼

L-Arginine supports nitric oxide production for better blood flow, increased energy, and cardiovascular health, based on its role in vasodilation and protein synthesis.

How should I take this supplement?▼

Take 2 capsules daily with water, ideally on an empty stomach or before exercise. Consult your doctor if you have health conditions or take medications.

Are there known allergens?▼

The product contains gelatin capsules; check for personal sensitivities. It is filler-free and 100% pure, but no major allergens are listed beyond the capsule material.

Is Pure a reputable brand?▼

Yes, Pure is listed in the NIH Dietary Supplement Label Database (DSLD), indicating compliance with regulatory standards for supplement labeling.