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Now Foods, L-Lysine, 1,000 mg, 100 Tablets

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In Stock
  • Expiration Date: Jun 2020
  • Shipping Weight: 0.53 lbs (0.24 kg)
  • Product Code: NOW-00113
  • UPC Code: 733739001139
  • Package Quantity: 100 Tablets
  • Dimensions: 2.5 x 2.5 x 4.4 in, 0.45 lbs (0.2 kg)
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Product Overview


  • Double Strength
  • Essential Amino Acid
  • Supports Healthy Connective Tissue
  • Supports Calcium Absorption
  • GMP Quality Assured
  • A Dietary Supplement
  • Vegetarian/Vegan

L-Lysine is an essential amino acid, which means that is cannot be manufactured by the body and must be obtained through the diet or by supplementation. Lysine is necessary for the production of all protein in the body including hormones, enzymes, and antibodies, as well as carnitine and collagen, which is the structural protein forming all connective tissue such as skin, tendon, and bone. L-Lysine also plays a major role in calcium absorption. Some evidence suggests that L-Lysine supplementation may help to support a healthy immune system as well as proper cardiovascular function.

Suggested Use

As a dietary supplement, take 1 tablet to 2 times daily, with or between meals. Consider taking these other NOW products: L-Proline, Zinc and AlliBiotic CF.

Other Ingredients

Cellulose, croscarmellose sodium, silica, magnesium stearate (vegetable source), stearic acid (vegetable source) and vegetarian coating.

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

This product has twice the L-Lysine (1,000 mg per tablet) as in our regular strength product (500 mg per tablet).

NOW L-Lysine is Pharmaceutical Grade essential amino acid.


Store in a cool, dry place after opening.

For adults only. Consult physician if pregnant/nursing, taking medication, or have a medical condition. Keep out of reach of children.

Do not eat freshness packet. Keep in bottle.

Supplement Facts
Serving Size: 1 Tablet
  Amount Per Serving %Daily Value
(from L-Lysine Hydrochloride)
1 g (1,000 mg) *
*Daily Value not established.
iHerb Customer Reviews

Very good to balance the side effects of L-Arginine

Posted by 5517710588088563673 on Sep 24, 2016

Vry good to balance the side effects of L-Arginine (boost herpes )

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Posted by 5578850690353612933 on Apr 21, 2016

cold sores are a pain, this product reduces re-occurrence

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Posted by 5349479473289017231 on Feb 28, 2016

Works as explained!

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Posted by 5495069641474287848 on Sep 22, 2015

We always have a bottle of this at home!!!!! My husband treats his lips herpes only with this product. it takes it for a day and the herpes stops annoying him, by the second day it is totally cured.

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Lysine is a miracle cure.

Posted by MGG-ThreeTwoFour on Aug 01, 2015

After I got influenza a few years back I got the worst cold sore outbreak I've ever had. I was a mess. A doctor prescribed me an antiviral. Later another doctor who I was having drinks with (and not on the clock) confirmed that the prescription antivirals aren't really very helpful. I've never had any luck with them anyways. She told me to take large doses of lysine (5000 mg a day) each day if I feel an outbreak starting and it should nip it in the bud. I had nothing to lose and lysine is super cheap.This is the best and only cold sore cure out there. It really, really works. I am a convert. I have bottles of lysine everywhere I go frequently, so I am never surprised and miss a chance. I have one when I travel, one at work, one at home, and one at my parents' house for when I visit. ** For new customers of iHerb, please also visit my page for more product reviews **

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