Tomlyn Immune Support Daily L-Lysine Powder for Cats and Kittens, Fish Flavored Lysine Supplement for Cats and Kittens to Support Immune Health, Normal Eye Function and Respiratory Health, 3.5oz.
Tomlyn Immune Support Daily L-Lysine Powder for Cats and Kittens, Fish Flavored Lysine Supplement for Cats and Kittens to Support Immune Health, Normal Eye Function and Respiratory Health, 3.5oz.
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Tomlyn Immune Support Daily L-Lysine Powder for Cats and Kittens, Fish Flavored Lysine Supplement for Cats and Kittens to Support Immune Health, Normal Eye Function and Respiratory Health, 3.5oz.

Key item features

  • Tomyln Immune Support L-Lysine Powder for Cats, 100g
  • Daily L-Lysine Supplement - Tomlyn Lysine Powder for cats helps support a strong immune system and can help support eye and respiratory health in cats and kittens of all ages.
  • Supports Feline Health Issues - Vetoquinol Lysine for Cats can help manage common feline health issues and provides support to help a cat's immune system, ocular health, and respiratory health.
  • L-Lysine for Cats - L-Lysine for cats and kittens provides specially formulated immune support for as long as needed to help manage conditions responsive to lysine.
  • Vet Recommended - Trusted by veterinarians, Tomlyn L-Lysine Powder provides a safe and reliable solution for supporting your cat's immune and respiratory systems.
  • 500mg of Lysine Powder - Get the veterinarian-recommended amount of lysine for cats with our easy-to-administer Lysine Powder
Current price is $20.97$5.99/oz
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Customer ratings & reviews

4.3 out of 5 stars
stars249 ratings189 reviews
How item rating is calculated
  1. 5 stars63% (156)
  2. 4 stars19% (48)
  3. 3 stars11% (27)
  4. 2 stars5% (12)
  5. 1 star2% (6)

Reviews summary

Pros

  • : Can be easily mixed into cat food or water.
  • : Mixes easily with water or wet food.
  • : Reduces sneezing frequency and severity.
  • : Enhances overall feline health and wellness.

Cons

  • : Has potent oceanic odor that may be overwhelming.
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Showing 1-3 of 189 reviews

May 18, 2026
Karen
Top Reviewer
Item details
Shape: Single
5 out of 5 stars review

Verified Purchase

Great help for feline herpes and immunity.

My cats love this L-lysine mixed with their wet food or in the puree lickable Delectables by Hartz. There is this tiny scoop you use twice a day. It should last quite a long time but I have already ordered a back-up. The soft chews by Tomlyn they also love and I break in pieces . I have tried 3 different chews and these are the only chews they will eat as well. My cat had a feline herpes outbreak and a terrible pink runny eye that she could hardly open and sneezing. Unless they get a secondary bacterial infection antibiotics are not effective for this viral problem. Within about 3 days she has stopped sneezing, her eye is better and she is not lethargic. I try my best with rescues cats and spay and neuter but vet costs are mostly impossible.

Helpful?1CH8IOSPEWLO43263904
Oct 24, 2025
Kelsey
Top Reviewer
Item details
Shape: Single
5 out of 5 stars review

Verified Purchase

Good

It mixes easily into my cats' food, and I've noticed less sneezing and better overall health.

Helpful?1CH8IOSPEWLO43263904
Feb 24, 2025
Adrian
Item details
Shape: Single
Sold byZQUAREDDelivered byWalmart
5 out of 5 stars review

Verified Purchase

this helped my sick feral stray when they had an URI and since then Ive noticed a huge change in their weight and overall health

Helpful?1CH8IOSPEWLO43263904