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

Free-Form L-Lysine

Free-Form L-Lysine

Item: SW268

  • An all-natural stress fighter

  • A highly effective immune system aid

  • Helps to balance high levels of the amino acid L-arginine

500 mg 100 Caps
Caps Size: 00

Retail $4.99
Save 30%
In Stock
  • An all-natural stress fighter

  • A highly effective immune system aid

  • Helps to balance high levels of the amino acid L-arginine

Stressed? When tensions run high is when you need Swanson L-lysine the most. L-lysine is classified as an essential amino acid because our bodies need it every day for regulating immune responses. But when we're under increased stress, our need for L-lysine increases even further. Our Free-Form L-Lysine capsules are a great way to meet the additional demands of high-stress times.

Terms and Ingredient Definitions

Supplement Facts

Serving Size 1 Capsule

  Amount Per Serving % Daily Value
L-Lysine (from L-lysine HCl) 500 mg *

*Daily Value not established.

Other ingredients: Rice flour, gelatin, magnesium stearate.

Suggested Use: As a dietary supplement, take one capsule two to three times per day with water on an empty stomach.

Relative Size

Printable Size Guide

Shipping Weight

.25 lbs

Swanson Premium Free-Form L-Lysine Reviews

Summary of Customer Ratings & Reviews

Customer Ratings & Reviews

Rated 5 out of 5 by 22 reviewers.
Rated 4 out of 5 by L Lysine One of the amino acids our body needs. You can get this from food but you can get a little more by taking this supplement. April 26, 2015
Rated 5 out of 5 by Great Product Great with Vitamin C, and strangely enough helps with sleep. May 23, 2014
Rated 5 out of 5 by This product is great for quieting the mind, & helps me get to sleep easier! April 24, 2014
Rated 5 out of 5 by Best Purchase Ever I had looked for this product in capsule form for a long time. It has helped me so much. January 30, 2014
Rated 5 out of 5 by Useful for Maintenance As part of my overall health maintenance routine, I take this product daily. It seems to be quite beneficial. September 17, 2013
Rated 5 out of 5 by Great Lysine Product Best on the market for the price. Highly recommend September 17, 2013
Rated 5 out of 5 by I think it is working Not going into details on why I started taking this. But with the combination of this and a couple of others that I am taking I think it is doing what I need it to April 17, 2013
Rated 5 out of 5 by added to my regimen added to my regimen. said it was good for immune support etc so, i have added it to my daily supplements. no adverse reactions to report April 15, 2012
Rated 5 out of 5 by Always use it I wouldn't be without this product - it really works and is very economical to take every day. April 8, 2011
Rated 5 out of 5 by Great Value Definitely a good product for the money. March 23, 2011
Rated 5 out of 5 by capsules make it easy to swallow Inexpensive and the capsules are easier to swallow compared to big hard round tablets. November 1, 2009
Rated 5 out of 5 by best purchase I've made I started taking this a few months ago due to a very stressful life. I am amazed with the results. I feel so much better. I take one at bedtime with a calcium supplement. I am able to get a good night's sleep and feel rested in the morning. I'm so glad I found Swanson to help with all my vitamin needs. August 15, 2009
Rated 5 out of 5 by Love this L-Lysine! Swanson's L-Lysine is an excellent product and is sold at a most exceptionally good price. Taken on an empty stomach it seems to give me more energy and provide the healing properties I want. I highly recommend it. August 13, 2009
Rated 5 out of 5 by Using Swanson's L-Lysine We have been using the product for over a year now and found that it helps a lot in over-all immunity, especially before and during the menses, when the body's defense mechanism is very low. July 30, 2009
  • 2017-01-17 T10:50:40.025-06:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_22, tr_22
  • loc_en_US, sid_SW268, prod, sort_default
1-15 of 15

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 Free-Form L-Lysine

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: 00

500 mg 300 Caps
Caps Size: 00

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