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Source Naturals, L-Lysine, 500 mg, 250 Tablets

By Source Naturals

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$9.65 (46%)
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In Stock
  • Product Code: SNS-00140
  • UPC Code: 021078001409
  • Package Quantity: 250 Tablets
  • Dimensions: 2.9 x 2.9 x 5.3 in, 0.6 lbs (0.27 kg)
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Product Overview

  • Free-Form
  • Dietary Supplement

L-Lysine is an essential free-form amino acid, which acts as a precursor for other amino acids, including L-carnitine (needed for fat metabolism). L-Lysine is crucial to the formation of collagen, a major part of the body's connective tissues. L-Lysine also contributes to energy production when converted to acetyl coenzyme A, one of the principal fuels for the Krebs Cycle.

Suggested Use

1 to 2 tablets daily.

Other Ingredients

Sorbitol, stearic acid, modified cellulose gum and magnesium stearate.

Suitable for vegetarians. Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.


If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.

Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

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Supplement Facts
Serving Size: 1 Tablet
  Amount Per Serving %DV
L-Lysine (HCl) 500 mg
† Daily Value not established.

iHerb Customer Reviews

5 Stars
4 Stars
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2 Stars
1 Stars

Abdominal Aortic Aneurysm (AAA) reduces its size.

Posted by Reviewer2359537 on Feb 21, 2012

This extraordinary product taken concomitantly with other antioxidants (Melatonin, vitamin C with 100 mg Bioflavonoids NOW C-1000 -1 every 12 hours-, Proline), and Multi-Vitamin/Mineral, Iron-Free has helped me reduce the size of my Abdominal Aortic Aneurysm. I highly recommend. Very important: do not mix vitamin C with iron, as this mixture produces free radicals. If you should take iron, it takes 12 hours before or after, vitamin C. For now, doctors have decided not to intervene surgically to place a stent. Has been extraordinary. Note. - Reducing the size of the AAA is documented with CT's (Angio Computed Tomography)

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4 people found the following review helpful

djbseattle on Source Naturals L-Lysine

Posted by Reviewer1866717 on Mar 25, 2009

L-Lysine seems to place my cold sores at rest. Seems to be a good product for better looking skin. I can sure use that!

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1 person found the following review helpful

Love this brand

Posted by Reviewer3047809 on Sep 20, 2009

I've been taking Lysine for years and I like these pills the best. They are also easy to swallow.

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1 person found the following review helpful

very good

Posted by Reviewer1913642 on Jan 06, 2012

Had cold sores and herpes and it takes the pain away! Very good product!

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1 person found the following review helpful

cold sores and canker sores

Posted by Reviewer2773279 on Jan 13, 2012

This is very helpful to prevent and shorten problems with cold sores and canker sores

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