L-Lysine Powder

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


Lysine is an essential amino acid, meaning that it is vital to human health but cannot be manufactured by the body. Due to this reason, Lysine must be obtained from food or supplements.

In the body, Lysine is used to produce acetyl-CoA, a significant molecule used in energy production. Lysine also helps the body absorb and conserve calcium. 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.

Directions & Allergens

Suggested Use: 

As a dietary supplement, take 500 mg (~1/4 tsp) 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 zipper immediately after use to preserve freshness.

Labels & Instant COA

125 Gram:
125 Gram
  500 Gram:
500 Gram
  1 Kilogram:
1 Kilogram


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.

Why We Use "Foil" Packaging

Many of our bulk powders are packaged in multi-layered "foil" pouches.

We do this for several reasons:

Freshness. The number one reason we use flexible packaging is for freshness. Air and moisture both are enemies of freshness. Our flexible packaging reduces the amount of moisture and air that comes into contact with the ingredient. We also vacuum the air from almost all of our flexible packaged products.

Vacuum packaging has caused us some problems. When some customers received "rock hard" bags of powders, they mistakenly thought the product was old or exposed to heat. But the real reason was all the air was vacuumed out. Once the bag is opened, the powder flows freely. Unopened Hard Rhino vacuum packed bags can last well past their printed expiration dates as long they are stored in a cool, dry place.

Cost Effective. Flexible packages cost less than plastic or glass jars. The unit cost for each is lower and the amount of space they take up in our warehouses is much less. This is one more reason why our prices are lower than others.

Better for the environment. Flexible packaging takes up less space in landfills and uses less resources in its manufacture.

But, we give you a choice. Some customer don't like flexible bags and they prefer jars. That's why we offer you both options (for many of our products). 

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3 Reviews

  • 5
    Great Lysine product!

    Posted by Chaba on 22nd Feb 2018

    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

    Posted by Unknown on 12th Feb 2015

    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!

    Posted by CINDY BOYKIN on 11th Feb 2015

    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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