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Jarrow Formulas, L-Lysine, 500 mg, 100 Capsules

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In Stock
  • Product Code: JRW-15004
  • UPC Code: 790011150046
  • Package Quantity: 100 Capsules
  • Dimensions: 4.6 x 2.5 x 2.5 in, 0.25 lbs (0.11 kg)
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Product Overview


  • Essential Amino Acid for Protein Metabolism
  • Dietary Supplement

L-Lysine is an essential amino acid necessary for growth, development, tissue maintenance and repair.

Suggested Use

Take 1 capsule 1 to 3 times per day, preferably on an empty stomach or as directed by your qualified healthcare professional.

Other Ingredients

Magnesium stearate (vegetable source) and cellulose. Capsule consists of gelatin.

No wheat, no gluten, no soybeans, no dairy, no egg, no fish/shellfish, no peanuts/tree nuts.


Keep tightly closed, away from moisture. Do not refrigerate.

Note: If you have a medical condition, are pregnant, lactating, trying to conceive, under the age of 18, or taking medications, consult your healthcare professional before using this product.

Keep out of the reach of children.

Supplement Facts
Serving Size: 1 Capsule
Servings Per Container: 100
  Amount Per Serving % DV
L-Lysine (from 625 mg L-Lysine HCl) 500 mg *
* Daily Value not established.
iHerb Customer Reviews

Its for my cats

Posted by 5698799012672723802 on Jul 02, 2016

This helps with eye infection and discharge in kittens, runny nose and sneezing in adult cats. DO NOT give this to your cat for more then two weeks in a row. It may cause a deficiency in another amino acid

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No side-effects so far

Posted by 5594819311926026073 on Jun 25, 2016

I'm using this to stop Herpes from developing further when it came. Seems to be working. No side-effects so far

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Something is working

Posted by Reviewer2135862 on Jun 08, 2016

I have been taking for a month, one a day, and a long day at the beach under the sun did not give me any blisters. Another time, I felt some sensation, opened up a capsule, dumped it on the tingling area and had not blisters. I thing Lysine is helping. Time will tell.

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Works for herpes

Posted by 4622020554456921221 on Mar 26, 2016

Like many people with oral herpes, I've been suffering its outbreaks always-when-you-least-expect-it, it was spoiling almost every holiday and all the important dates. Taking these, one daily, helps me avoid cold sores now, I'm very happy to have found this product. Half a year with no outbreaks now. Well, you can't get rid of herpes, but now at least i can control it.

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Power to Inmune System

Posted by Reviewer3186500 on Mar 19, 2016

Reduces the time of sickness,is fantastic to placating the active herpers virus ( L-lysine is one of the amino acids that can be used in complex with others like L-Methionene and L-Carnitine for clearing liver fats), and works still better in combination of Vitamine C. Good for gums, I have less bleeding since I take this pills. Less stress symptoms, fights against colds, good for vegetarian people. I love it, and I will purchase again, and again.

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