

🐾 Elevate your cat’s immunity game — because they deserve the best!
VetriScience Lysine Immunity Health Chews deliver 250 mg of high-quality L-lysine plus DMG in delicious chicken-flavored soft chews designed to support cats’ immune and respiratory health. Trusted by veterinarians and pet parents alike, this supplement helps reduce allergy symptoms like sneezing and watery eyes while promoting tissue repair, collagen production, and antioxidant activity. Suitable for cats and kittens of all breeds and sizes, it’s a vet-formulated, NASC-certified daily or as-needed immune booster with no artificial additives.










| ASIN | B002ALE9RM |
| ASIN | B002ALE9RM |
| Active Ingredients | 250 mg L-Lysine, 50mg N,N - Dimethylglycine |
| Allergen Information | Wheat Free |
| Best Sellers Rank | #2,909 in Pet Supplies ( See Top 100 in Pet Supplies ) #7 in Cat Multivitamins |
| Brand Name | VETRISCIENCE |
| Customer Reviews | 4.0 4.0 out of 5 stars (12,435) |
| Date First Available | July 15, 2004 |
| Department | Vitamins & Supplements |
| Flavor | Chicken |
| Global Trade Identification Number | 00026664274311 |
| Included Components | Vetri-Lysine Plus Supports Immune system Function Collagen formation Tissue repair Antioxidant activity Antibody and Lymphocyte production |
| Is Discontinued By Manufacturer | No |
| Item Form | Treat |
| Item Type Name | Immune and Respiratory Supplement |
| Item Weight | 0.3 Pounds |
| Item model number | 0940743.120 |
| Manufacturer | FoodScience, LLC |
| Manufacturer | FoodScience, LLC |
| Product Benefits | Immune Support |
| Product Dimensions | 11.5 x 5.25 x 8.63 inches; 4.8 ounces |
| Target Species | Cat |
| UPC | 026664274311 |
| Unit Count | 120 Count |
| Warranty Description | Covered by the FoodScience, LLC 60-Day Satisfaction Guarantee. Additional terms apply. |
M**A
Supports Immunity & Reduces Sneezing – Cats Love It 🐱
I’ve been giving my cat this Lysine powder for a few weeks, and it’s been great! She actually enjoys the chicken and cheese flavor, which makes it really easy to give her the supplement daily. I’ve noticed her sneezing less and her eyes and nose seem clearer, which is such a relief. The powder mixes well with her food, and the capsules are convenient for travel or when needed. It feels high-quality and safe, and the 60-count supply lasts a good while, making it worth the price. Overall, it’s a simple, effective way to support my cat’s immunity and help with allergy symptoms, and I’d definitely recommend it to other cat owners.
A**E
Great support for my cat’s daily wellness
I’m really happy with the VetriScience Lysine Powder for Cats. It’s easy to mix into my cat’s food, and she doesn’t seem to mind the chicken & cheese flavor at all—which is a big win. I like how simple it is to add into our daily routine, especially for supporting overall wellness. The powder blends well and doesn’t leave a mess, and the container is easy to use. After using it, I feel more confident that I’m supporting my cat’s everyday health in a simple, stress-free way. Overall, I’m very satisfied with this product and would definitely recommend it to other cat owners looking for an easy supplement to add to their routine.
S**E
My cats love these
I have had my cats on these for years now, I’ve lost count of the amount of packages that I’ve purchased. This is the only brand that I will buy because it’s the only brand that my cats will eat. I have to cut them in thirds for my cats or they are too tough to chew and they won’t touch them. I cut the tail off and then the main part in half, perfect size for them. Once I do that they get excited for their treats. I got one of my cats when she was 10 weeks old and noticed that she was sick right away. The vet explained that she had a cold caused by the feline herpes virus. She’s twelve now and if she doesn’t get the chews then she’ll have a cold within days. A couple of years later, I adopted a two and a half year old male cat that also has feline herpes. Without these chews his eyes get junky and he gets the cold symptoms just as quickly. They both know when it’s treat time and will sit in front of the counter and meow until I look at the clock. I recommend these to anyone that has a cat with feline herpes. If your cats won’t eat them, try cutting them in half, it might help; did with mine.
M**A
These worked for my cat!!
He started sneezing periodically for 2 days, and I noticed one if his eyes was watery and a little red, he was tearing from that eye (clear tears). On the third day he started squinting and rubbing it. I read the reviews for these chews and figured I'd give it a try before taking him to the vet (which I am SO thankful I did). After ONE day he started sneezing less, on the second day he probably only sneezed once or twice and his eye was starting to look better. By the third day he was back to his playful ways, terrorising his sister (they love each other, really). I followed the directions on how many to give them a day, and will purchase again if the symptoms flare-up.
M**Z
My cat loved it!
I’ve been using the VetriScience Lysine Powder for my cat for a few weeks now, and I’m really happy with the results. My cat used to have occasional sneezing and watery eyes, especially during seasonal changes, and this supplement has made a noticeable difference. What I love most is how easy it is to use, just mix it into food and it blends in well. The chicken and cheese flavor must be appealing because my cat eats it without hesitation (which is a big win since he can be picky). I’ve noticed his overall comfort has improved, with less nasal congestion and fewer allergy-like symptoms. It also gives me peace of mind knowing I’m supporting his immune health in a simple, stress-free way. Definitely recommend this for any cat owner dealing with mild respiratory or allergy issues. It’s been a great addition to our routine!
O**R
Nice product for picky cats!
My cat actually eats this with no problem, which says a lot because cats are picky. Easy to mix into food, simple to use, and a solid option if you want a lysine supplement without a hassle.
R**S
Cat refuse immune system vitamins
My cat did not like this vitamin, for her immune system. A basically had to push it down her throat and that was not a good idea
L**L
Great cat product!
Great supplement to add for our cat that goes indoors and outdoors. Extra protection! She didn't seem to mind at all when I added this mixed into her food. Chicken & cheese flavor enhanced her food & is easy to add! Def. recommend to other cat owners.
M**P
Quantità minima
K**E
Cat started to feel better after using them He had a skin allergy (had bold spots) Vet suggested those pills
Y**Y
Got a kitten who has a little cough going on.After a week he is doing so much better.
L**A
Disappointing to order cat food from Amazon US. Last time all the cat food got stopped by customs. Some went thru yet the food inside the cans became all watery and poor quality. I thought these health supplements would work better. However, the tablets inside became very dry and hard. Difficult to get my cat to eat them. Yet I paid a high price for the item. Disappointed!
N**3
L-Lysine contenant en plus de la DMG Diméthylglycine (appelée vulgairement vitamine B15) 2ème achat depuis avril 2019 JE CONFIRME SON EFFICACITÉ: Produit qui a beaucoup d'appétence au parfum très agréable - forme d'un petit poisson d'un peine 2 cm de long, facilement sécable en 2 au besoin. Mon chat le mâche sans difficulté: il en raffole. Mon chat auparavant avait les yeux larmoyant rouge d'irritation des canaux lacrymaux et mettait des gouttes partout sur le plancher, avec une tendance à sa moucher même si ce n'est que des éclaboussures claires. EFFICACE dès le premier mois de traitement: j'ai commencé par 1 "gomme" matin et soir pour tester si le chat supporte le traitement, puis au bout de 2 semaines 2 "gommes" matin et 1 le soir (le chat pèse près de 6 kg). Il n'a plus les yeux larmoyants de larmes rouges/marron. Je fais maintenant des cures de Vetri Lysine Plus occasionnellement suivant les récidives de cet herpès oculaire.
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