Added to Cart
Cart Total:
Customers Also Bought:
24/7 Help

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

$7.23 $7.23 (Saved $5.75)

Thank you!

Your email is being processed.

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

Our Price:
You Save:
$5.75 (44)
  • Quantity Discount
  • Buy 3+
    Save 10%

Sorry, this product is no longer in stock.

Earn 5% Loyalty Credit ?

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

In Stock
100 Tablets
100 Tablets
250 Tablets
  • Expiration Date: 01/2021
  • Shipping Weight:
    0.53 lbs
    Switch to Metric units
  • Product Code: SNS-00142
  • UPC Code: 021078001423
  • Package Quantity: 100 Tablets
  • Dimensions:
    5 x 2.5 x 2.5 in, 0.45 lbs
    Switch to Metric units
Combo Offer!
Save $10.00 when you purchase these items today for only $57.22
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

Good For Value

Posted by Sleepy on Aug 28, 2017 | Verified Purchase

I've been trying l-lysine for a few good months now for my skin and hair. I can see there is some improvements to my skin, will have to wait and see give it more time.

Thanks for your feedback!

Helps prevent and treat cold sores!

Posted by iHerb Customer on Aug 26, 2017 | Verified Purchase

When I developed shingles one Christmas on my head and eye, I found that this was a recommended natural remedy. I took these frequently right away. Doing this, eating lots of garlic, using clay on the sores greatly reduced the breakout and I had no pain from the Shingles. Since then, whenever I feel the "tingle" of the cold sore, start taking Lysine. It helps greatly by either preventing a full outbreak and shortening any outbreak that happens. I would not be without this even though I don't get cold sores often. I have not had any further outbreaks of shingles either.

Thanks for your feedback!

Using for reactivated Epstein Barr Virus

Posted by iHerb Customer on Jul 27, 2017 | Verified Purchase

Have used other products from this brand and been very happy. 1st time I have used Lysine (3000 mg) and got an almost an immediate energy boost from it. I've already purchased another large bottle.

Thanks for your feedback!


Posted by iHerb Customer on Jul 23, 2017 | Verified Purchase

Herbistä kannattaa ostaa Lysiinit.

Thanks for your feedback!

Lysine great for your body.

Posted by iHerb Customer on Jul 20, 2017 | Verified Purchase

Like this product and use it regularly.

Thanks for your feedback!