Perfusia-SR is a slow-release L-arginine supplement that supports vascular health by promoting steady blood flow and endurance throughout the day. The star ingredient, L-Arginine, acts as a precursor to nitric oxide, helping blood vessels relax and support circulation. Thorne products are manufactured in the USA with clean label formulations and rigorous quality controls.

Available Sizes & Variants:

120 capsules - Sustained release delivery supports all day circulation.

Benefits & Features:

• Keeps steady blood flow throughout the day.
• A long lasting delivery keeps nitric oxide production steadier, supporting ongoing circulation and endurance so you can power through workouts and daily tasks with confidence.
• Simple two capsule daily regimen helps sustain plasma levels for longer, making it easier to integrate into any routine.
• Manufactured in the USA to GMP standards with a clean label, free from gluten and artificial fillers.
• Ideal for daily wear as part of a proactive vascular health routine.

Perfusia-SR uses a Time-Sorb delivery matrix to release L-Arginine gradually, keeping nitric oxide production steadier and supporting vascular function. Thorne manufactures in the USA with strict quality controls and clean label formulations, avoiding gluten and unnecessary additives. This heritage of reliability means you're choosing a brand you can trust for safety and performance. In the Thorne range you'll also find magnesium glycinate, a vitamin d supplement, and probiotics for gut health.

Arginine

• GTIN: 693749525028
• Manufacturer: Thorne
• Categories: New ArrivalsOut of stockPopular 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.

The recommended use of the supplement is to take 2 capsules twice a day, or as advised by your healthcare provider. Shake well before using. Add 1 full squeeze of the dropper bulb to 2 oz of water or juice\, 2 to 4 times per day. Best taken between meals.

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

1. Improves Cardiovascular Health: Perfusia-SR contains L-Arginine, an amino acid that helps to promote the production of nitric oxide in the body. Nitric oxide helps to relax blood vessels and improve blood flow, which can ultimately improve cardiovascular health and reduce the risk of heart disease.
2. Enhances Athletic Performance: L-Arginine also plays a key role in the production of creatine, a compound that provides energy to muscles during physical activity. By increasing the levels of L-Arginine in the body, Perfusia-SR can help to enhance athletic performance and improve exercise endurance.

The Active Ingredient Is: L-Arginine

L-Arginine is essentially an essential amino acid, and a natural precursor to nitric oxide, a molecule involved in vascular function. This product uses a sustained-release Time-Sorb matrix to help keep steady levels throughout the day.

This form supports gradual release and ongoing availability of L-Arginine in the bloodstream, matching clean-label principles and Thorne's high manufacturing standards described by Thorne.

What Does L-Arginine Do?

L-Arginine plays a role in normal endothelial function and supports blood flow by promoting nitric oxide production, a mechanism described in reviews of vascular health research. It is also associated with enhanced exercise performance through improved circulation, as recognised in EFSA-aligned discussions of vascular function.

Dr. Böger from a university has found that sustained arginine delivery can contribute to improved endothelial function and blood flow in research contexts.

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

Thorne has established a solid track record as a trusted US-based manufacturer known for clean-label formulations, strict in-house quality control, and a reputation for purity and safety across its products. This brand’s emphasis on high manufacturing standards aligns with Welzo’s commitment to traceable, reliable supplements produced in facilities that adhere to GMP practices.

Our careful evaluation process, carried out by our team of doctors, nurses, and nutritionists, highlights Thorne for its transparent manufacturing ethics, thorough internal testing, and clear emphasis on allergen control and clean sourcing. This diligence is complemented by our our quality certification process, ensuring consistent quality and potency across products.

Perfusia-SR sits nicely within Thorne’s formulation philosophy. The sustained-release L-arginine approach, backed by Thorne’s manufacturing excellence, makes this brand a natural fit for a supplement designed to keep steady plasma levels and support vascular wellness all day. This mix of brand reliability, thorough testing, and product development aligns with Welzo’s selection criteria and trust in Thorne for this niche area.