NOW Foods L-Arginine helps support blood vessels and heart health by supplying a dependable source of L-arginine, the essential precursor to nitric oxide. This simple, single ingredient formula is created by NOW Foods, a brand with decades of experience and a long-standing reputation for purity and rigorous quality controls, which many customers value. Capsule delivery makes daily dosing easy and straightforward so you can stay consistent with your goals.

Benefits & Features:

• Supports nitric oxide production for better blood flow.
• Simple, single ingredient design helps you know what you’re taking.
• Vegetarian capsules make daily dosing easy to fit into busy routines.
• Manufactured by NOW Foods to exacting standards, this product undergoes GMP guided production and third party testing to ensure purity, potency, and consistent quality every single batch.
• Regular, daily use may support consistent nitric oxide availability, beneficial for cardiovascular health and exercise performance.

NOW Foods L-Arginine reflects a purity first philosophy that many customers value. The formula uses pharmaceutical-grade L-arginine in vegetable capsules, with non GMO ingredients and straightforward lists. Purity you can feel. Quality you can trust. NOW Foods has decades of expertise and a long standing commitment to GMP certified production and transparent controls. This heritage translates into dependable sourcing and everyday wellness you can rely on.

L-Arginine (Free-Form)

• GTIN: 733739000309
• Manufacturer: NOW Foods
• Size: 100 Capsules
• Categories: Arginine SupplementsL-Arginine Supplements & TabletsNitric Oxide Boosters SupplementsNOW Foods
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take 2 capsules twice daily as needed. Take between meals or at bedtime with at least 8 oz. 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 if taking medication (especially antihypertensives, anticoagulants, and antidiabetic drugs), have a medical condition (especially asthma or renal disease), or 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.

Please consult the product packaging for accurate instructions on how to use the product.

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Core Active Ingredient Is: L-Arginine

L-Arginine is an amino acid that our body uses to produce nitric oxide, a molecule involved in normal blood vessel function and cardiovascular processes.

This single-ingredient supplement is packaged in a vegetable capsule and is produced to high standards for purity and safety.

What Does L-Arginine Do for you?

L-Arginine participates in making nitric oxide, which helps maintain normal blood flow and supports cardiovascular function. It also plays a role in exercise performance and muscle-related processes as part of regular dietary intake.

For everyday vitality, this amino acid supports normal physiological functions linked to blood vessel dilation and tissue perfusion.

This supplement is not intended to diagnose, treat, cure, or prevent any disease.

Welzo picks partners who show steady quality, openness and a practical approach to supplement making. NOW Foods is a reliable, long‑standing brand with over 50 years in the trade, recognised for solid formulation, GMP‑certified production and rigorous quality testing. Their commitment to purity and safety is bolstered by clear third‑party testing and robust sourcing practices, which aligns with our standards for reliability and consumer trust. The brand’s reputation for science‑led formulation and accessibility makes NOW Foods a natural fit for this single‑ingredient supplement.

Our team checked brands against criteria like manufacturing excellence, certifications, and traceability. NOW Foods meets these by maintaining pharmaceutical‑grade ingredients, adhering to GMP and providing transparent controls throughout production. This product type benefits from a simple, high‑quality ingredient profile, and NOW Foods’ heritage in delivering dependable L‑Arginine supports the intended purpose without unnecessary additives. This brand’s approach impressed our experts for consistency and safety, informing our partnership decision. This brand was evaluated by our team of medical experts for compliance with how we verify ingredient quality.