No Thanks

Your 10% Off Promo Code is on the Way! Thanks for signing up for emails.

You're now signed up to receive exclusive deals and savings opportunities!

Thanks again for connecting with us. Keep an eye on your inbox — your first coupon is on its way!

Thank You! This email address is already signed up

You are signed up for the following:

  • Offers
  • Recipes
  • E-Newsletter
  • Updates & Reminders

Thank you for your interest and be assured that you will continue to receive our emails at this address.

Look for your next communication from us within the next week.


We are having trouble processing your request.

Our apologies!

Please try again later.

America's #1 Rated
Catalog/Internet Brand
Based on Customer Satisfaction
Shop by
Do You
Need Help?

Swanson Premium



Item: SW852

  • Valuable, free-form amino acid nutrition

  • Provides fundamental nourishment for immune and cardiovascular systems

  • Teams with methionine and glycine to aid the making of energy in your muscles

500 mg 100 Caps
Caps Size: 0

Retail $7.49
Save 40%
In Stock
  • Valuable, free-form amino acid nutrition

  • Provides fundamental nourishment for immune and cardiovascular systems

  • Teams with methionine and glycine to aid the making of energy in your muscles

Swanson L-Arginine is an economical and effective addition to your dietary plan, especially if you are concerned with cardiovascular and immune system health. Each convenient capsule delivers 500 mg of free-form l-arginine.

Terms and Ingredient Definitions

Supplement Facts

Serving Size 1 Capsule

  Amount Per Serving % Daily Value
L-Arginine (free-form amino acid) 500 mg *

*Daily Value not established.

Other ingredients: Gelatin, may contain one or more of the following: microcrystalline cellulose (plant fiber), magnesium stearate, silica.

Suggested Use: As a dietary supplement, take one capsule one to two times per day with water.

WARNING: Not intended for use by children or pregnant women. Consult your healthcare provider before use if you have renal or liver disease. Reduce dosage if you experience nausea, abdominal cramps or diarrhea.

Relative Size

Printable Size Guide

Shipping Weight

.19 lbs

Swanson Premium L-Arginine Reviews

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

Rated 4.3 out of 5 by 10 reviewers.
Rated 4 out of 5 by Satisfactory purchase I've been using Swanson products for over a year and the combination, which includes L-Arginine as well as numerous other Swanson products appear to be providing the benefit of improved stamina and wellness. December 4, 2013
Rated 5 out of 5 by Helpful supplement, trusted brand I read that this supplement may help circulation so I tried it. I've been using it for a year now and do feel it is working! I trust the Swanson brand and price. August 2, 2013
Rated 5 out of 5 by Amino Acids I take L-Arginine with L Lysine and Acetyl L Carnitine every evening for the Amino Acids along with Ashwagandha to relax with. July 24, 2013
Rated 5 out of 5 by I think it is working Not saying why I bought it, but I believe with the combination of a couple of others it is doing what I wanted it to. April 17, 2013
Rated 5 out of 5 by Heart and circulation I use this as a part of a heart and circulation regimen. March 30, 2013
Rated 5 out of 5 by Swanson L-Arginine I take this amino to help with blood flow, and it seems to work great! I used to get this one at Walmart when I went there, but it is of course cheaper here. November 18, 2011
Rated 5 out of 5 by Improves my circulation It helps in a 'certain' area if you catch my drift. I take it on an empty stomach. May 29, 2011
Rated 3 out of 5 by Not effective I am aware of all the supposed improved benefits, bioavailability of this product over L-Arginine but this has no effect with me. Am going back to arginine. September 2, 2010
  • 2017-01-22 T14:56:22.803-06:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_10, tr_10
  • loc_en_US, sid_SW852, prod, sort_default
1-9 of 9

Why Shop Swanson® Brands?

"With my personal 100% money-back satisfaction guarantee, you have nothing to lose and great savings to gain."

Lee Swanson, Founder of Swanson Health Products

Risk-Free Purchase Guarantee on Swanson Premium L-Arginine

If you are dissatisfied for any reason, we'll give you a full refund and pay return shipping.

Swanson's Standards

We are dedicated to offering the highest quality products at the best price. Find out more about how we ensure such a high standard in everything we do.

Learn More

500 mg 100 Caps
Caps Size: 0

500 mg 200 Caps
Caps Size: 0

500 mg 400 Caps
Caps Size: 0

Customer Service
About Swanson
© 2017 Swanson Health Products – Terms of Service