Cat Immune Support Lysine – Allergy Relief & Immune Health Supplement for Cats with L-Lysine, Colostrum, Quercetin & Omega-3 – Soothes Sneezing, Runny Nose & Itchy Skin Chicken, (30-Day Supply)

If you have a cat that struggles with sneezing, watery eyes, or seasonal allergies, this supplement is a total game changer. My cat used to have frequent sneezing fits and occasional itchy skin, especially after spending time near open windows or during seasonal changes. Since starting these I-Lysine treats, I’ve noticed a clear improvement in her breathing and overall comfort. I love that this formula goes beyond basic lysine. The combination of L-Lysine, Quercetin, and Colostrum really makes this feel like comprehensive immune and respiratory support. It’s reassuring knowing the antioxidants help defend against irritants while omega fatty acids support her skin and coat. It feels like it’s working from the inside out instead of just masking symptoms. The biggest surprise? She actually gets excited for them. The crunchy outside with the creamy center and chicken flavor must be irresistible because she eats them like a treat. For picky cats, that alone is worth five stars. I’ve also sprinkled them over food with zero issues. I really appreciate the clean ingredient profile — no fillers, no artificial colors or preservatives — and that it’s made in the USA by a NASC member company. That kind of transparency matters when it comes to my pet’s health. Overall, this has helped keep the sneezing, itchiness, and runny eyes at bay while supporting her immune system year-round. Happy cat, happy owner. Highly recommend to any cat parent dealing with allergy struggles!

Excellent buy. Helped my kitty. She is a picky eater but she so loved this. The flavor is very appealing to her. She always looks forward to this daily treat that’s not only delicious to her taste buds but also helps her allergies.

Revised: While this product works VERY WELL on my cats herpes respiratory issues, it is upsetting her stomach and making her puke. I think my mistake was letting her have too many of the treats at once, so I've started giving her half her daily dose in the morning with breakfast, and half in the evening. So far, so good :) I have tried several Lysine supplements for my flat faced cat, who has non-stop respiratory issues. None of them have worked well and given her any relief until this one. And on top of that she likes it and eats it willingly, unlike the others. Very happy with this product, finally have her sinus and eye drainage issues under control!

UPDATE 11/27/2025: Formula does what it claims. I have been successful at feeding several of these treats to my cat by stuffing 3-4 treats at a time into a cold pate meatball and sprinkled with kibble (Important to use cold pate to hold the meatball shape). I used to add a few treats to the meatball too but made my cat only want the treats and not eat the entire meatball. I would substitute one meatball for one meal until he ate a total of 12 treats for 12 lbs of weight (3-4 meatballs in total per day). Note, portion is 1 tbsp per feeding. Only after all meatballs have been eaten do I resume his regular meals for remainder of day. Several small meals per day prevents over-feeding and keeps your cat healthier and trim just like humans!😆Lol Regardless, my cat recently had been very sick with vomiting due to several factors and caused his leaky eye to return. After vet used anti-convulsant and bland diet for a few days, my cat was better. Then I slowly added his regular food to diet w/o these treats. By end of week, I added these treats in pate meatballs again. The Lysine in this formula coupled with the probiotics and fish oil have healed his leaky eye and improved his digestion. His skin and coat have always been in excellent condition due to the kibble formula I use. However, once my cat became ill his skin and coat became dry and dull. I am happy to say that these treats have put the health and shine back into my cat’s coat. The benefits of adding these into your cat’s diet far outweigh the inconvenience of making pate meatballs to entice eating them. So I will continue to use these treats as long as my cat will eat them. Original Review in May 2025: The package states it contains approximately a 30 day supply of treats depending on your cat’s weight. Directions state to give 1 chew per 2 lbs weight for kittens and 1 chew per 1 lb weight for cats greater than 6 months old. I have to feed my cat 12 treats per day because he weighs 12.5 lbs. These cat treats are about 1/2 inch wide by 1/4 inch high. See photos for reference. Be cautious though if your cat is pregnant or used for breeding because these treats have not been proven safe. Otherwise, It’s best to feed treats during or after a meal to reduce GI upset. My cat was excited to try something new and seemed to like it after a couple treats. So I gave him a few more treats. However, he stopped chewing and spit one out. I think he must have detected the fish oil or brewer’s yeast even though it is chicken flavored. In either case, he hates the taste of both! I was instructed by my vet to share a tiny portion of my fish oil gel capsules to prevent spit-ups, whatever the cause. He didn’t like it at first either and refused to eat his food. Now, I just cover his kibble and fish oil with wet cat food or liquid pate. I will try adding these chews as well to get my cat to eat them before I give up. If successful, I will give an updated review. I bought these chews hoping they will stop his one leaky eye, hot spot, and hairballs. I also hope these chews will work so I can quit sharing my fish oil gel capsules with my cat. It’s great for cat’s skin & coat, but an open capsule tastes as bad as castor oil!🤮🤮 No wonder my cat hates the taste!😆Lol Turns out the seasonings from table scraps were the cause of frequent vomiting. What can I say? Those Puss ‘n Boots eyes get me every time!😆Lol

I can't begin to tell you how much this has helped our cat. She has suffered from sneezing, stuffy breathing and severe eye drainage since we rescued her and nothing helped but this! Finally, she can breath and the eye drainage, I kid you not, cleared up almost immediately and it was so bad. She looks and I know feels so much better. I will continue to buy this forever for her!

It seems to be a good product, but it's hit or miss whether our kitty will eat them. Pretending they are treats results in her indignation. She obviously has explicit expectations! I'm disappointed because she needs the supplement. She would rather starve than eat her canned food with the goopy type of Lysine added. I was hoping these would do the trick. Not so much!

These really do work, but you must be consistent and give them every day to your cat. Mine cat has horrible allergies. I use these along with their vitamins and her coat is very soft.. I also recommend getting an air purifier to help with their constant sneezing.. I have purchased mini bags of this item and wouldn’t be caught without it.

My cat has seasonal allergies. She loves these and they work. Do not upset her delicate digestive system. Better than probiotic powder. Easier to administer she just eats them.

Mon chat de 10 ans a eu une période d'éternuements (allergie) et quad j'ai vu et lu ce produit, me suis dite, je ne perds rien. Alors, je lui en ai donné une fois par jour, selon son poids. Et ça n'a pas été long, il éternuait moins et ensuite, plus du tout.

One of my cats needs lysine supplements. However, he hates the Optixcare L-Lysine chews (the Vet recommended ones). I can’t get my cat to eat these. So I tried to find other alternatives. I found these, my cat loves them, but they are small. I find there are not many for the price, but he serms to really enjoy this alternative lysine snack.

My cats love it! Instead of giving them fatty treats, I replace them with this product. This way, my cats get healthy while enjoying treats. Highly recommended

So far it's working, our cat likes them.