Free shipping on orders $35+
Front of Lysine Immunity Health bag
4.0 53 reviews

Lysine Immunity Health for Cats

$15.50
Immune
A daily l-lysine supplement for cats that promotes a healthy immune & respiratory system and helps support the health of eyes, nose, and lungs.
Find my Dosage

Details & Benefits

Vetri Lysine is now Lysine Immunity Health!

What is Lysine Immunity Health used for?

Lysine Immunity Health is a vet-recommended l-lysine supplement for cats, formulated with a unique combination of lysine and DMG to support a strong immune system and normal respiratory health and function. Additional benefits of lysine include supporting collagen formation, tissue repair, and the production of antibodies.

Lysine Immunity Health underwent strict palatability testing to make sure that cats love the taste and texture. The hydrolyzed chicken-liver flavor is appropriate for pets who are sensitive to proteins.

Can lysine be given daily to cats?

While L-lysine can be found naturally in a variety of whole foods, including meat, fish, eggs, and brewers yeast, supplementation is often recommended for daily use for cats of all ages. Kittens (age 3-6 months) typically require a lower dosage than adult cats, and adults (6+ months) may require a higher dosage during periods of respiratory discomfort, including sneezing, runny nose, and watery eyes.

Your veterinarian can help guide recommended lysine dosage for your cat. When using Lysine Immunity Health, it may take a few weeks to see the full results of lysine supplementation, but many owners report seeing small positive changes within just a few days.

Need immune support in a liquid form? Consider DMG Immunity Health, an easy-to-administer immune-support supplement for cats, to support immune health, oxygen utilization, healthy circulation, energy production, and more.

Recommended For

Recommended for:

  • Immune system health & function
  • Supporting respiratory health
  • Supporting eye health
  • Normal antibody production
  • Daily physical health

Enhance your Pet's Routine:

Use the previous and next buttons to move through recommended products.

Alt attribute not provided for this image

Frequently asked questions

Our products have been manufactured in U.S. facilities, with the best ingredients sourced from around the globe, for over 40 years. Our manufacturing facilities are SQF-certified and strictly adhere to National Animal Supplement Council (NASC) guidelines and Current Good Manufacturing Practices (cGMP) as defined by the Food and Drug Administration (FDA).

The ingredients used in VetriScience® supplements are sourced globally, with many coming from the U.S. Our ingredient suppliers must undergo a rigorous application process to ensure their raw materials meet our strict quality standards. All our ingredients are third-party tested to guarantee quality and purity. VetriScience® products are formulated to comply with all regulations set by The Association of American Feed Control Officials (AAFCO) and the National Animal Supplement Council (NASC).

In many cases, VetriScience® products can be given together without issue. However, we always recommend consulting with your veterinarian to determine if the combination is suitable for your cat or dog and their unique health needs.

Our products are supplements, not drugs or medications. Therefore, no prescription is required to purchase VetriScience® products online, at in-person retail stores, or through your veterinarian.

Our 100% Satisfaction Guarantee means that we will replace or refund any product you're not completely satisfied with. For your order to qualify, you must have purchased it through an authorized seller, have the lot number and original sales receipt, and request a refund/replacement within 60 days of purchasing and before the product's expiration date. See Shipping & Returns Policy details here.

Customer Reviews

4.0
Rated 4.0 out of 5 stars
Based on 53 reviews
72%would recommend this product
Write a Review (Opens in a new window)
53 reviews
  • K
    Kathryn
    Verified Buyer
    Rated 3 out of 5 stars
    7 months ago
    New product for my feline

    I thought I'd try this treat on my cat that has some issues to get the lysine in her. Unfortunately wanted nothing to do with the treat. I tried it on several the other cats and no one was interested in it whatsoever. So I had to get my lysine and another form.

    It's a shame because the treat is so much easier to give a cat

    Was this helpful?
  • G
    Gretchen
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    Kitty likes these

    Lysine has always helped our kitty with her runny nose and eyes. Glad to have in a chew to make it easy instead of adding to her food.

    Was this helpful?
  • C
    Claire
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    Kitty health

    Once I understood the "visual" packaging change, I found my product quickly; just disappointed there is no longer the 120 count of this product for my 4 cats. I stand with this product.

    Was this helpful?
  • L
    Laura
    Verified Buyer
    I do not recommend this product
    Rated 1 out of 5 stars
    1 year ago
    Unfortunately, not one of my 4 cats would not eat these

    Not one of my 4 cats would eat this lysine treat. I bought 2 bags and was hopeful this would be a good option for my cats. I tried several times and even opened the 2nd bag and tried them as well but no one would eat them. They arrived all clumped together, almost like they got hot in transit, though the weather was cold out. My cats are generally pigs and eat anything but the palatabilty was not here for us sadly.

    Was this helpful?
  • C
    Claire
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    Vetri immunity for cats

    My kittens are looking better and are frisky ...thank you for keeping them healthy ...😊

    Was this helpful?