

🐾 Keep your feline thriving with every scoop—because your cat deserves the best!
TOMLYN Immune Support Daily L Lysine Supplement is a vet-formulated, fish-flavored powder designed to support cats’ immune and respiratory health. Ideal for managing common feline issues like sneezing and watery eyes, it’s easy to dose and highly palatable, backed by over 5,000 positive reviews and trusted since 1976.






| ASIN | B00BERPOP4 |
| Allergen Information | Yam Free |
| Batteries Included | No |
| Best Sellers Rank | #17,055 in Pet Supplies ( See Top 100 in Pet Supplies ) #415 in Cat Health Supplies |
| Breed Recommendation | All Breed Sizes |
| Care instructions | Store in a cool, dry place. |
| Color | multi |
| Customer Reviews | 4.6 4.6 out of 5 stars (5,086) |
| Date First Available | 19 August 2013 |
| Fill Material | Plastic |
| Flavor | Chicken and Fish |
| Item Form | Stick |
| Item Weight | 181 g |
| Item model number | 433343 |
| Number of Items | 1 |
| Pet Life Stage | All ages |
| Pet Type | Cat, Kitten, Pet |
| Product Dimensions | 7.62 x 6.99 x 6.99 cm; 181.44 g |
| Quantity | 1 |
| Size | 3.5 oz (1 Pack) |
| Specific Uses | Active |
| Storage Information | Store in a cool, dry place. |
| Volume | 5 Liters |
| batteries required | No |
V**I
This works
This really worked on one of my cat who had continuous sneezing, and my cats did not have an issue with the taste
I**T
We're really happy with this. My cat has had on and off problems with his eyes for years. Despite all efforts he kept getting problems. Since giving him this product with his food ( took him a couple of feeds to get used to it ) he's not had a problem for a long time now and seems happy and healthy
J**S
In 2021 I brought home a new kitten. After only a few months he got very sick. I found out he had the herpes virus. I didn't even know they had sent his blood work out so, my other two cats were exposed. Every morning, I mix one scoop of L-lysine in each of my cats wet food. They never complain, always eat up, and so far my herpes cat has stayed healthy. I won't use any other product. One tiny scoop is enough for each of my adult cats.
L**N
Seems to work well for weepy eyes (but doesn't get rid of it entirely), I mix it with wet food and my boy doesn't seem to notice the taste. Easy to use with the scoop.
M**S
I purchased this as a replacement for another brand (Viralys) that I had been getting through my vet. One of our kitties had a "cold" when we adopted her. That "cold" just wouldn't clear up. She had a weepy eye and sneezles for weeks. When we took her to the vet, the vet said it was kitty herpes and prescribed the Viralys (at $30 a container). It's l-lysine in powder form; you sprinkle it on the cat food. There is no cure for feline herpes, but l-lysine helps clear up the symptoms. (For those who want to know how l-lysine helps, The Cat Doctor & Friends in Santa Clarita says, "We use L-Lysine to fool your cat's herpes virus into self-destructing by using L-Lysine, instead of another amino acid Arginine, when making new copies of itself. This decreases the amount of herpes virus in your cat's body and hopefully eliminates clinical signs such as sneezing or squinting one eye and reddish brown discharge. Green or yellow discharge from your cat's eye or nose is probably not feline herpes and deserves a veterinary visit.") The Viralys l-lysine powder not only worked great, clearing up the weepy eye and drippy nose within a remarkably short amount of time, it was also loved by all our kitties. (The vet said it wouldn't hurt any of them to eat it.) However, at $30 a container, and with the stupid mistake I made that wasted half a container (see below), I wanted to find a less expensive alternative. And I did. This product, the Tomlyn Scientifics l-lysine, seems to be identical to the Viralys, and costs half what my vet was charging me. My one concern was whether it would taste as good to the kitties, and it does indeed seem to. == My Stupid Mistake and How You Can Avoid It == When I first got the Viralys from my vet, I made a stupid mistake. I used the little scoop that comes with the powder to sprinkle the lysine powder on the cat food, and then I used the scoop to stir the powder into the food. Then I returned the scoop to the container. Those of you who are familiar with good sanitation practices will be able to predict what happened next: after a while, the tiny crumbs of cat food I had inadvertently transferred to the container gave birth to new life. In a few weeks, I saw suspicious little clumps and balls in the powder. I threw out the rest of the powder rather than risk making my kitties sick. After thinking about what I could do to prevent wasting my kitties' medicine (and my money), I realized the solution: put the powder into a shaker container so it never gets contaminated. After shopping around, I purchased the Kaiser Bakeware La Forme Select Sugar/Spice Shaker Set (available here on Amazon), which is just the right size for the powder. I'm using the shaker lid with the largest holes. Now all is well.
F**O
Tomlyn L-Lysine Powder Supplement was as others have described it (not sealed and smells of yeast) BUT my cats seem to like it and the yeast etc are probably a;so good for them and my boys chronic eye condition seems to have improved.....
Trustpilot
5 days ago
2 weeks ago