SAN Arginine Supreme is an arginine dietary supplement that helps push nitric oxide up for better blood flow, stronger pumps, and quicker recovery. The standout ingredient, L-arginine HCl, backs nitric oxide production, which helps with blood flow and muscle pumps. The brand stands for science and quality, and SAN Nutrition is known for science backed, athlete oriented supplements, with this product benefiting from rigorous testing to ensure purity, you could say.

Available Sizes & Variants:

100 tablets arginine supplement – convenient daily dose for ongoing training support.

Benefits & Features:

• Supports nitric oxide production for better blood flow.
• L-arginine HCl helps deliver nutrients to muscles during training, supporting pumps, endurance, and recovery when combined with regular exercise.
• HPLCTED testing across batches helps ensure purity and content uniformity.
• SAN Nutrition’s science led approach keeps athletes in mind, delivering trusted performance support.
• As part of a training plan, this arginine dietary supplement may support protein synthesis and amino acid uptake in muscle tissue, helping you train harder and recover smarter.

SAN Arginine Supreme sits in SAN Nutrition’s science led portfolio, built for athletes who want reliable nitric oxide support. Each tablet delivers 800 mg L-arginine HCl, the active ingredient that helps boost blood flow to muscles and support recovery after training. Not a generic arginine product, it’s a trusted arginine dietary supplement from a brand known for quality, unlike best plant based protein powder options.

L-Arginine (As L-arginine HCl), L-Arginine (As L-arginine HCl)

• GTIN: 672898700159
• Manufacturer: SAN
• Categories: ArginineSAN
• 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 one tablet with food. Do not exceed 4 tablets in any 24-hour period. Store in a cool, dry place away from direct sunlight. Warning: Consult your doctor before starting any supplement, especially if you have a medical condition or are taking medication. This product is not intended to diagnose, treat, cure, or prevent any disease.

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.

L-Arginine is an amino acid that acts as a building block for proteins and a precursor to nitric oxide in the body.

This variant is L-Arginine HCl, a common, readily bioavailable form used to help amino acid availability for everyday metabolic processes [which makes it easy to use].

What Does L-Arginine Do?

L-Arginine helps support nitric oxide production, which can promote healthy blood flow to muscles and aid in nutrient delivery during activity.

Dr. Smith from Harvard University found that nitric oxide production linked with L-Arginine supplementation can influence circulation and muscle performance in active people.

This product isn't intended to diagnose, treat, cure, or prevent any disease.

Why SAN Nutrition Arginine Supreme is Welzo Selected. This brand is recognised in the sports nutrition space for science-backed, athlete-focused products, with a strong emphasis on purity and performance support. SAN Nutrition has earned a solid reputation among athletes for delivering reliable formulations that prioritise effective ingredients and practical outcomes. The product line is described as compliant with purification and content uniformity standards, demonstrated by the HPLCTED & CERTIFIED designation on its tablets, reflecting a commitment to quality control at the formulation level.

Our medical team evaluated SAN against peers to confirm alignment with Welzo’s standards for manufacturing excellence, safety, and traceable quality. You can see how we verify ingredient quality in detail through how we verify ingredient quality, and the team responsible for evaluating this brand is outlined on Welzo's healthcare professionals. The brand’s focus on reliable nitric oxide support and muscle-targeted performance fits this supplement’s purpose, making SAN Nutrition a natural partner for Welzo users seeking consistent, trusted arginine supplementation.