NOW Sports Double Strength L-Arginine 1000 mg – Nitric Oxide & Muscle Support, 180 Tablets

NOW Sports Double Strength L-Arginine 1000 mg is a high-potency amino acid supplement formulated to support nitric oxide production, protein metabolism, and muscle maintenance. Each tablet provides 1,000 mg of pharmaceutical-grade L-arginine from 1,250 mg of L-arginine HCl, delivering twice the amount found in NOW's regular-strength 500 mg product. L-arginine is a conditionally essential amino acid involved in urea metabolism, protein production, and normal nitric oxide synthesis. As a nitric oxide precursor, it supports normal blood-vessel function and circulation while complementing active-lifestyle and fitness routines. For another amino acid from the same line, see NOW Sports L-Carnitine Liquid 1000 mg, or NOW Sports L-Glutamine Powder.

Key Benefits

• Supports normal nitric oxide production and blood-vessel function
• Promotes healthy circulation as part of an active lifestyle
• Supports protein metabolism and normal muscle maintenance
• Provides 1,000 mg of pharmaceutical-grade L-arginine per tablet
• Offers twice the L-arginine of NOW's regular-strength product
• Supports fitness, training, and everyday amino acid routines

Product Details

• Size: 180 tablets (180 servings at the labeled 1-tablet serving)
• Main ingredient: L-Arginine from L-Arginine HCl, 1,000 mg of L-arginine per tablet from 1,250 mg of L-arginine HCl
• Serving size: 1 tablet
• Dietary features: Vegan, vegetarian, non-GMO, halal, kosher, dairy free, egg free, soy free, and nut free
• Quality: Informed Sport certified, steroid tested, and produced under GMP quality standards
• Best use: Nitric oxide, protein metabolism, muscle maintenance, and active-lifestyle support

Suggested Use

Take one tablet twice daily as needed. Take between meals or at bedtime with at least 8 fl oz of water or juice to facilitate absorption. Use as directed on the product label. For adults only. Not for pregnant or nursing women. Consult a physician before use if taking medication, especially antihypertensive, anticoagulant, or antidiabetic medication; managing a medical condition, particularly asthma or renal disease; or planning surgery. Avoid use with glaucoma or herpes simplex unless prescribed by a physician. Do not use after a myocardial infarction or with established coronary artery disease. Keep out of reach of children. Natural color variation may occur.

Why Choose NOW

Double strength, clearly labeled: 1,000 mg of pharmaceutical-grade L-arginine per tablet from 1,250 mg of L-arginine HCl, with 180 tablets per bottle for a convenient supply. Informed Sport certified and steroid tested, in a vegan, non-GMO, halal, and kosher formula made under GMP quality standards.

Frequently Asked Questions

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

A: Each tablet provides 1,000 mg of pharmaceutical-grade L-arginine from 1,250 mg of L-arginine HCl.

Q: What does double strength mean here?

A: Each tablet delivers twice the amount found in NOW's regular-strength 500 mg product.

Q: How do I take it?

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

Q: How many tablets are in the bottle?

A: The bottle contains 180 tablets, providing 180 servings at one tablet per serving.

Q: What does L-arginine support?

A: It supports normal nitric oxide production, blood-vessel function, circulation, protein metabolism, and muscle maintenance.

Q: Is it tested for athletes?

A: Yes, it is Informed Sport certified and steroid tested.

Q: Is it vegan?

A: Yes, it is vegan, vegetarian, non-GMO, halal, kosher, dairy free, egg free, soy free, and nut free.

Q: When should I take it?

A: Take it between meals or at bedtime, as directed on the label.

Q: Can pregnant or nursing women use it?

A: No, it is not for pregnant or nursing women.

Q: Who should check with a physician first?

A: Anyone taking medication, especially antihypertensive, anticoagulant, or antidiabetic medication; anyone managing a medical condition, particularly asthma or renal disease; or anyone planning surgery.

Add NOW Sports Double Strength L-Arginine 1000 mg to your routine for high-potency nitric oxide and muscle maintenance 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.