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Source Naturals, L-Lysine, 500 mg, 200 Capsules

By Source Naturals

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In Stock
  • Product Code: SNS-01598
  • UPC Code: 021078015987
  • Package Quantity: 200 Capsules
  • Dimensions: 5.4 x 2.9 x 2.9 in, 0.45 lbs (0.2 kg)
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Product Overview

  • Amino Acid 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 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 capsules daily.

Other Ingredients

Gelatin (capsule), microcrystalline cellulose and magnesium stearate.

Hypoallergenic: contains no yeast, dairy, egg, gluten, corn, 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.

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

iHerb Customer Reviews

5 Stars
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3 Stars
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1 Stars

Lysine, Source Naturals (Excellent)

Posted by Reviewer1648956 on May 31, 2009

I find that my hair and nails are growing more quickly and thicker. I noticed after one month of taking this product. The original reason that I started taking Lysine was to bind iron to the red blood cells. This has worked perfectly as well. I'm very impressed with this product.

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5 people found the following review helpful

Great Product

Posted by Reviewer3275126 on Jan 30, 2009

This is a great product. Have been giving it to my son for his leg cramps/muscle spasms. He used to have them multiple times a night. Since he's been taking this product, he rarely has them at all.

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4 people found the following review helpful

great products overall

Posted by Reviewer1304780 on Feb 15, 2009

good for keeping my herpes simplex at bay taken daily.

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2 people found the following review helpful


Posted by Reviewer1235529 on Apr 10, 2009

Had cold sores/herpes and it takes the pain away and heals in 4-6 days compared to 10 or more days! I take 4K mg/day.

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2 people found the following review helpful

Helps keep cold sores at bay

Posted by Reviewer1147121 on Dec 24, 2008

I've taken this for years to keep the number of cold sores I have to deal with to a minimum. This is a cheap way to deal with cold sores.

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2 people found the following review helpful

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