L-Arginine Plus is a premium cardiovascular and circulation support supplement built to boost heart health by increasing nitric oxide production and supporting endurance from Thorne. It’s easy to fit into a daily routine, quick and easy to take, and it won’t weigh you down. L-Arginine provides the nitric oxide boost, while Vitamin C, Folate, Green Tea, and Resveratrol support vessels and antioxidant protection.

Available Sizes & Variants:

180 capsules - premium L-Arginine Plus capsules designed for sustained nitric oxide support.

Benefits & Features:

• Sustains blood flow for daily activity.
• Supports healthy nitric oxide levels with L-Arginine, improving vascular flexibility.
• Antioxidants from Vitamin C, Green Tea, and Trans-resveratrol help protect vessels.
• Time Sorb time release delivers L-Arginine steadily through the day.
• Manufactured in the USA under strict GMP guidelines with third party testing, Thorne delivers reliable purity and potency, so you can trust daily use for long term support.

Thorne's L-Arginine Plus blends high quality, bioavailable ingredients with a heritage of medical grade supplements. The star ingredient, L-Arginine, supports nitric oxide production for better blood flow, while the Time Sorb matrix provides a sustained release. Antioxidants from Vitamin C, folate in a bioactive form, green tea extract, R-alpha lipoic acid, and trans-resveratrol work together to support vessel health and resilience. Thorne has decades of experience, strict GMP manufacturing, and third party testing that professionals trust.

Alpha-Lipoic Acid, Arginine, Folate, Green Tea Extract, Resveratrol, Vitamin C

• GTIN: 693749526018
• Manufacturer: Thorne
• Categories: Arginine SupplementsL-Arginine Supplements & TabletsNew ArrivalsNitric Oxide Boosters SupplementsPopular Supplement BrandsThorne Supplements
• 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.

Consume 3 capsules twice a day, or as advised by your healthcare provider. As a dietary supplement\, take two capsules per day with meals\, or as directed by your health care practitioner.

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

1. Boosts Heart Health: L-Arginine Plus contains L-arginine, an amino acid that helps to increase nitric oxide production in the body. This can improve blood flow and circulation, leading to a healthier heart and reduced risk of heart disease.
2. Enhances Exercise Performance: By increasing blood flow and oxygen delivery to the muscles, L-Arginine Plus can also improve exercise performance and endurance. This can be especially beneficial for athletes and active individuals looking to maximize their physical performance.

The Active Ingredient Is: L-Arginine

L-Arginine is basically an amino acid, a precursor to nitric oxide, helping normal vascular function. This product uses a time-release delivery system to help keep L-Arginine available in the body.

In this blend, L-Arginine is supplied with co-factors and other nutrients that can support its role in circulating processes. The mix emphasises bioavailability and steady delivery to support daily physiological needs.

What Does L-Arginine Do?

L-Arginine helps nitric oxide production, a molecule involved in vascular tone and normal blood flow regulation. It helps support circulatory function in line with EFSA-style nutrient function concepts.

As part of a multi-ingredient blend, the supporting nutrients help maintain overall oxidative balance and endothelial health, aligning with the product’s focus on cardiovascular and endurance-related pathways.

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

Thorne brings a proven, evidence-based formulation philosophy to Welzo, underpinned by three decades of innovation and recognition as a trusted choice of healthcare practitioners. The manufacturer’s commitment to quality is demonstrated by USA-based production under strict GMP guidelines, rigorous third-party testing, and clean-label manufacturing practices that prioritise safety, potency and purity. Our evaluation team, including specialists from Welzo, assesses suppliers using a structured process that highlights sourcing transparency, controlled manufacturing environments, and validated quality assurance protocols. This brand’s reputation for reliability and scientific rigour stood out during our vetting, reinforcing confidence in its ability to deliver consistent, well-formulated ingredients. This product aligns with Thorne’s time-release, bioavailable approach to L-Arginine delivery and co-factors, making it a natural fit for cardiovascular and circulation support. For customers, this means a trusted brand partnership backed by our expert team of doctors, nurses, and nutritionists and our quality certification process our expert team of doctors, nurses, and nutritionists our quality certification process.

Available Sizes & Variants: -