L-Lysine Powder

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  • L-Lysine Powder
  • L-Lysine Powder
  • L-Lysine Powder



What is L-Lysine?
Lysine is an essential amino acid, meaning that it is vital to human health but is not created within the body. Due to the body's inability to produce Lysine, it must be obtained from either food, supplements, or both. In the body, Lysine is used to produce acetyl-CoA, an important molecule used in energy production. Lysine also helps the body absorb and conserve calcium and is integral in muscle turnover and growth. The amino acid also creates carnitine, which transports energy to the mitochondria of the body's cells. It plays a crucial role in the formation of collagen, a substance critical for bones and connective tissues, including skin, tendons, and cartilage. More importantly, Lysine helps boost the immune system by aiding the production of antibodies.

Potential Benefits May Include:

  • May reduce symptoms of anxiety † 
  • May promote calcium absorption †
  • May promote healing of wounds †

How Does L-Lysine Work?
L-Lysine converts into nitric oxide, which is necessary to improve blood flow through vasodilation. Lysine contains a mechanic that may slow the replication process of certain viruses. This mechanic works by starving viruses of arginine. L-Lysine also promotes the creation of collagen, which is integral in tissue function and healing wounds. The amino acid may also reduce stress and reduce symptoms of anxiety by decreasing cortisol production. 

Consider This:
Consider combining Harvest Naturals L-Lysine with Muscle Empire Arginine for increased relaxation, improved NO production, and muscle repair.


Directions & Allergens

Suggested Use: 


As a dietary supplement, take 1 heaping scoop (~500 mg) mixed with 8 ounces of water or suitable beverage. Taken 1 - 3 times daily or as directed by your qualified health professional.

This product contains no Soy, Dairy, Dairy byproducts, Eggs, Fish, Shellfish, Wheat, Gluten, Tree Nuts, or Sesame Seeds.

This is a NON-GMO ingredient manufactured using organic starting ingredients.

Store in a cool, dry place. Re-seal bag immediately after use to preserve freshness.

Instant COA 

Another HR Supplements exclusive is the “Instant COA” (Certificate of Analysis). We have built a customer facing interface that will allow you to view product COA's on any mobile device. Simply scan the Quick Response (QR) code on the HR Supplements product label and instantly view the lab reports. Please click here to request a copy of archived COA's.  


Statements & Warnings †

† These statements have not been evaluated by the Food & Drug Administration. This product is not intended to diagnose, treat, cure or prevent any diseases.

Keep out of the reach of children. Do not take this or any other supplement if under the age of 18, pregnant or nursing a baby, or if you have any known or suspected medical conditions and/or taking prescription drug(s) or OTC medication(s). Always consult with a qualified health physician before taking any new dietary supplement.

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4 Reviews

  • 5
    Excellent products

    Excellent products. Will continue to order.

  • 5
    Great Lysine product!

    Really good lysine I bought this in the store and the prices are expensive and you only get small containers. Purchasing this from hard rhino is like twice as cheap for like over 5 times as much, I've been stacking it with other amino acids and i feel like it works nicely!

  • 5
    cat care

    It has been recommended by my veterinarian to use on my cats for greater health. She has done extensive research on this product and says reports on use with cat colonies is very positive

  • 5
    Glad to find this product!

    I happened onto your site late one night trying to find help for my 35 kitties with URI's. I am in rescue and knew L-Lysine was great for cats. I took your product to my vet and she said I had ordered the BEST product for them with you and so I ordered 4 more pounds! Thank you for being out there for my beloved kitties. Would you like to give one a forever home???? Thanks, Cindy Boykin

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