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Source Naturals, L-Lysine, 1,000 mg, 100 Tablets

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In Stock
  • Expiration Date: Jun 2019
  • Shipping Weight: 0.53 lbs (0.24 kg)
  • Product Code: SNS-00142
  • UPC Code: 021078001423
  • Package Quantity: 100 Tablets
  • Dimensions: 5 x 2.5 x 2.5 in, 0.45 lbs (0.2 kg)
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Product Overview


  • Dietary Supplement
  • Free Form

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 for 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 tablet daily.

Other Ingredients

Stearic acid, sorbitol, colloidal silicon dioxide, 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.


Note: 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.

Supplement Facts
Serving Size: 1 Tablet
  Amount per Serving % Daily Value
Calories 5  
L-Lysine (HCl) 1 g
†Daily Value not established.
iHerb Customer Reviews

cold sores all gone

Posted by 5298300261610532974 on Sep 14, 2016

I take L-Lysine every day and cold sores and symptoms are gone what a great relief

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Posted by 5264360067699615795 on Aug 25, 2016

After a few researches on internet, I found that many people used L-Lysine to get rid of warts. I wasn't sure I believed it could work, but I had been having warts for such a long time, I didn't even know what to do anymore (I had tried literally everything). Within a month of taking 3 L-Lysine a day, I was able to completely get rid of warts that were on my fingers and arms for more than 8 years. I definitely recommend you try this for warts. They usually recommend it for herpes, but it worked for me...

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O.K. product

Posted by 5326453983406614107 on Aug 22, 2016

Lysine in the long term I use to like to prevent the formation of plaques in blood vessels. It helps to reduce cholesterol and triglycerides. It helps calcium absorption. I take 1 tablet. daily. I do not recommend taking along with arginine. When did they find this information helpful. Please press yes. Thank you Joseph

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Posted by 4828455117456499727 on Aug 01, 2016

Excellent product,especially with vit. C

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The ultimate in viral erradication

Posted by Reviewer1581820 on Jul 28, 2016

You must always have a bottle of Lysine in the house for viral attacks, cold sores, flu fevers AND encephalitis. A must have for regeneration of the nervous system upon which viruses live to destroy thereby causing pain in random places.

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