Your Cart is Empty
But it doesn't have to be.
Continue Shopping.
Added to Cart
Cart Total:
Customers Also Bought:

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

Our Price:
You Save:
$4.48 (45)
Earn 5% Loyalty Credit ?

Sorry, this product is no longer in stock.

This product is already in your Wish List.

View Wish List

This product is now in your Wish List.

View Wish List
In Stock
  • Expiration Date: Feb 2018
  • Shipping Weight: 0.3 lbs (0.14 kg)
  • 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)
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


Posted by 5233101948595665985 on Jan 06, 2017

Very very good product. Helps to prevent of herpes simplex!

Verified Purchase

Was this review helpful to you?

Lov it

Posted by 5222557758601332443 on Dec 31, 2016

Perfect for cold sores and the prevention of cold sores i havent gotten one so far Jarrow is a very good company i trust their products

Verified Purchase

Was this review helpful to you?

Recommended calcium absorption Uploads

Posted by 4925652789797691841 on Dec 01, 2016

Recommended calcium absorption Uploads. I did not do blood tests to check whether it actually works

Verified Purchase

Was this review helpful to you?

Good But...

Posted by 5139876467848860239 on Nov 14, 2016

Jarrow is a good brand IMO, buy a lot of stuff from them. I bought these because I was told they would help with recuperation from a tough workout and to take them at night before bed, but found these gave me sever diarrhea, so had to stop them.

Verified Purchase

Was this review helpful to you?


Posted by Reviewer1694950 on Oct 25, 2016

I use this when I feel a fever blister coming on I take two and it never happens sometime it takes two more later in the day on an empty stomach. Works

Verified Purchase

Was this review helpful to you?