NOW L-Arginine 500 mg – Nitric Oxide Support Amino Acid, 100 Veg Capsules

NOW L-Arginine 500 mg is a free-form amino acid supplement that supports normal nitric oxide production and amino acid nutrition. Each vegetarian capsule supplies 500 mg of L-arginine, with 1,000 mg provided in the recommended two-capsule serving. This single-ingredient active formula offers a straightforward option for adults seeking targeted arginine supplementation.

Arginine is a conditionally essential amino acid involved in protein production, DNA synthesis, and urea metabolism. It also serves as a precursor to nitric oxide, a compound involved in normal blood vessel dilation. These roles make L-arginine relevant to normal circulation and the body’s everyday metabolic processes.

The formula uses pharmaceutical-grade L-arginine, as stated on the label, in a convenient capsule format that requires no measuring or mixing. It is suitable for vegan and vegetarian diets and is non-GMO, kosher, and halal. Each bottle contains 100 veg capsules, providing 50 servings.

For buyers who value clearly disclosed amounts and a focused formula, NOW L-Arginine pairs a single active amino acid with a short list of other ingredients. Follow the label directions and review the product cautions before use.

Key Benefits

• Supports normal nitric oxide production by supplying its amino acid precursor, L-arginine.
• Helps maintain normal blood vessel function through arginine’s role in nitric oxide formation.
• Supports normal protein production and DNA synthesis.
• Supports normal urea metabolism, a process involved in nitrogen waste handling.
• Supports vegan and vegetarian supplement routines with a plant-based capsule shell.

Product Details

Featured Ingredients

L-Arginine (Free-Form) — 1,000 mg per two-capsule serving: A conditionally essential amino acid that serves as a precursor to nitric oxide and participates in normal protein production, DNA synthesis, and urea metabolism. Each capsule provides 500 mg. A Daily Value has not been established.

Other ingredients: Hypromellose (cellulose capsule), stearic acid (vegetable source), and silicon dioxide.

Allergen information: Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

How to Use

Take 2 capsules twice daily as needed. Take between meals or at bedtime with at least 8 oz. of water or juice, as directed on the product label.

Caution: For adults only. Not for pregnant or nursing women. Consult a physician if taking medication, especially antihypertensives, anticoagulants, or antidiabetic drugs; if you have a medical condition, especially asthma or renal disease; or if you are planning to have surgery.

This product should be avoided by persons with glaucoma or herpes simplex unless otherwise prescribed by a physician. Do not use if you have had a myocardial infarction or have established coronary artery disease. Keep out of reach of children.

Storage: Store in a cool, dry place after opening. Natural color variation may occur.

Best Time to Take

Between meals or at bedtime, following the label directions. Take each dose with at least 8 oz. of water or juice.

Best For

• Adults seeking an amino acid supplement to support normal nitric oxide production.
• Buyers looking for free-form L-arginine in a 500 mg capsule.
• People who prefer capsules instead of measuring and mixing powders.
• Adults seeking a vegan, non-GMO arginine formula that fits their dietary preferences.