NOW Double Strength L-Arginine delivers a potent, 1000 mg serving of pharmaceutical-grade L-Arginine in each easy-to-take tablet. As a conditionally essential amino acid and key precursor to nitric oxide (NO), L-Arginine plays a fundamental role in supporting vascular health, promoting healthy circulation, and aiding in muscle protein synthesis.* This high-purity formula is ideal for athletes and active individuals seeking to support their cardiovascular and physical performance goals.*

Key Benefits

• Nitric Oxide Precursor for Vascular Health* – L-Arginine is a primary building block for nitric oxide, a molecule that helps support healthy blood vessel dilation and overall cardiovascular function.*

• Supports Healthy Circulation & Blood Flow* – By contributing to nitric oxide production, this amino acid helps promote healthy circulation throughout the body, which is vital for energy and performance.*

• Aids Muscle Protein Synthesis & Recovery* – As a key amino acid, L-Arginine supports the body's natural production of proteins, aiding in muscle maintenance and post-exercise recovery.*

• Pharmaceutical Grade & Double Strength – Features 1000 mg of pure, pharmaceutical-grade L-Arginine HCL per tablet—double the potency of standard formulas—for effective supplementation.

• Vegetarian, High-Purity Formula – Delivered in vegetarian tablets with a clean ingredient profile, free from common allergens and unnecessary additives.

Ingredients

Active Ingredient Per Tablet: L-Arginine (1000 mg from L-Arginine HCl).
Other Ingredients: Microcrystalline Cellulose, Hydroxypropyl Cellulose, Stearic Acid (vegetable source), Croscarmellose Sodium, Silicon Dioxide, Vegetarian Coating.
Free From: Wheat, gluten, soy, milk, egg, fish, shellfish, tree nuts, sesame.

How to Use

Take one (1) tablet twice daily, between meals or at bedtime, with at least 8 oz. (240 mL) of water or juice to facilitate absorption.

Shipping & Delivery

UK Orders: Same-day dispatch before 3 PM Monday–Friday, 12 PM Saturdays. Tracked 24-hour delivery available.
International Orders: Delivered in 3–5 business days. VAT included where applicable.

*CRITICAL CAUTIONS & DISCLAIMER
For adult use only. Not for use by pregnant or nursing women. Consult your physician before use if you have a medical condition (especially asthma, kidney disease, glaucoma, herpes simplex, diabetes, low blood pressure, or any cardiovascular condition including a history of heart attack), are taking any medication (especially for blood pressure, blood thinning, or diabetes), or are planning surgery. Discontinue use if nervousness or sleeplessness occurs. This product should be avoided by individuals who have had a myocardial infarction. Keep out of reach of children.

These statements have not been evaluated by the Food and Drug Administration (FDA) or the Medicines and Healthcare products Regulatory Agency (MHRA). This product is not intended to diagnose, treat, cure, or prevent any disease, including erectile dysfunction (ED) or cardiovascular disease. It is not a sexual enhancement product.