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NOW Supplements

NOW L-Arginine 1000 mg Double Strength Tablets – 120 Count

NOW L-Arginine 1000 mg Double Strength Tablets – 120 Count

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NOW Double Strength L-Arginine 1000 mg provides a pharmaceutical-grade amino acid in a convenient vegetarian tablet. Each one-tablet serving supplies 1,000 mg of L-arginine from L-arginine hydrochloride — twice the amount found in NOW’s regular-strength 500 mg capsule. L-arginine is a conditionally essential amino acid involved in protein production and normal urea metabolism, and it serves as a precursor to nitric oxide, supporting normal blood vessel function and healthy circulation as part of an active wellness routine. The vegan formula is non-GMO, halal, kosher, dairy free, egg free, nut free, soy free, and made without gluten. A 120-tablet bottle provides 120 one-tablet servings for adults who want clearly stated potency and flexible daily use. For a gentler daily capsule option, see NOW L-Arginine 700 mg, or browse the full Vitamins A–Z collection.

Key Benefits

  • Supports normal nitric oxide production
  • Helps maintain healthy blood vessel function and circulation
  • Supports protein production and normal amino acid metabolism
  • Designed to support workout and active-lifestyle routines
  • Provides double-strength L-arginine at 1,000 mg per tablet
  • Offers a convenient one-tablet serving
  • Provides a vegan, non-GMO, halal, and kosher formula

Product Details

  • Size: 120 vegetarian tablets (120 one-tablet servings)
  • Serving size: 1 tablet, providing 1,000 mg of L-arginine from L-arginine hydrochloride
  • Main ingredient: Pharmaceutical-grade L-arginine from L-arginine HCl
  • Dietary features: Vegan, non-GMO, halal, kosher, dairy free, egg free, nut free, soy free, and made without gluten
  • Quality: Manufactured under GMP quality standards and tested for identity and quality

Suggested Use

Take 1 tablet twice daily as needed, between meals or at bedtime, with at least 8 ounces of water or juice to facilitate absorption. Store in a cool, dry place after opening. For adults only. Not for pregnant or nursing women. Consult a physician before use if taking medication, managing a medical condition, or planning surgery. Follow all additional cautions on the product label. Keep out of reach of children.

Why Choose NOW Foods

When a regular-strength capsule is not quite enough, this double-strength tablet steps up with 1,000 mg of pharmaceutical-grade L-arginine per tablet — twice the brand’s regular-strength 500 mg capsule — in a simple one-tablet serving. NOW Foods manufactures it under GMP quality standards and tests it for identity and quality, so adults building a nitric oxide and fitness routine get a clearly stated potency in a vegan, halal, and kosher tablet with nothing to measure or mix.

For a complementary workout staple, consider NOW Sports Creatine Monohydrate 750 mg.

Frequently Asked Questions

Q: How much L-arginine is in each tablet?

A: Each tablet supplies 1,000 mg of pharmaceutical-grade L-arginine from L-arginine hydrochloride.

Q: How is this different from the regular-strength L-Arginine?

A: This double-strength formula provides 1,000 mg per tablet, twice the amount in NOW’s regular-strength 500 mg capsule.

Q: How many tablets are in the bottle?

A: The bottle contains 120 vegetarian tablets, providing 120 one-tablet servings.

Q: How do I take it?

A: Take 1 tablet twice daily as needed, between meals or at bedtime, with at least 8 ounces of water or juice.

Q: What does L-arginine support?

A: L-arginine supports normal nitric oxide production, healthy blood vessel function and circulation, protein production, and normal urea metabolism.

Q: What is L-arginine?

A: L-arginine is a conditionally essential amino acid involved in protein production and normal urea metabolism, and it serves as a precursor to nitric oxide.

Q: Is this product vegan?

A: Yes, it is vegan, and also non-GMO, halal, and kosher.

Q: Who should not use this product?

A: It is for adults only and is not for pregnant or nursing women.

Q: When should I take it?

A: Take it between meals or at bedtime, as directed on the label, always with at least 8 ounces of water or juice.

Q: Should I talk to a healthcare professional first?

A: Yes, especially if you take medication, manage a medical condition, or plan to have surgery.

Add NOW Double Strength L-Arginine 1000 mg to your daily routine for high-potency nitric oxide, circulation, and fitness support.

This product is a non-prescription wellness product. It has not been evaluated by the FDA and is not intended to diagnose, treat, cure, or prevent any disease. Always consult a qualified healthcare professional before use.

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