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. Its role in protein metabolism also makes it relevant for adults focused on maintaining muscle tissue.

Each bottle contains 180 tablets, providing 180 servings and a convenient supply for consistent supplementation. The formula is vegan, vegetarian, non-GMO, halal, kosher, dairy free, egg free, soy free, and nut free. It is also Informed Sport certified, steroid tested, and produced under GMP quality standards. This double-strength L-arginine supplement is intended for adults who prefer a high-potency tablet with straightforward label directions. Natural color variation may occur.

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

Featured Ingredients

L-Arginine: Each tablet provides 1,000 mg of pharmaceutical-grade L-arginine from 1,250 mg of L-arginine HCl. This conditionally essential amino acid serves as a nitric oxide precursor and supports normal protein metabolism, circulation, and muscle maintenance.

How to 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.

Best Time to Take

Take between meals or at bedtime according to the label directions. Always consume each tablet with at least 8 fl oz of water or juice.

Best For

• Adults seeking double-strength L-arginine tablets.
• Nitric oxide and circulation-support routines.
• Protein metabolism and muscle-maintenance support.
• Fitness-focused and physically active adults.
• People who prefer one-tablet servings.
• Vegan, halal, kosher, and non-GMO preferences.