Help your cat look and feel their best every day with Vetri Lysine Plus chews. L-lysine is an essential amino acid that supports immune system, eye and respiratory health in cats. It promotes antibody, hormone and enzyme production while also providing antioxidant defense. L-lysine keeps cats healthy by competing with L-arginine to help prevent the replication of upper respiratory pathogens. L-lysine also supports collagen formation and tissue repair to promote healthy skin. DMG, a substance rapidly broken down by the body, supports immune response with antibody and lymphocyte production. Even picky eaters love these delicious chicken liver-flavored chews made with natural ingredients. L-Lysine is an ideal supplement for multi-cat households, boarding, kittens, and senior cats. Keep your kitty happy and healthy with Vetri Lysine Plus chews from VetriScience.
Help your cat look and feel their best every day with Vetri Lysine Plus chews. L-lysine is an essential amino acid that supports immune system, eye and respiratory health in cats. It promotes antibody, hormone and enzyme production while also providing antioxidant defense. L-lysine keeps cats healthy by competing with L-arginine to help prevent the replication of upper respiratory pathogens. L-lysine also supports collagen formation and tissue repair to promote healthy skin. DMG, a substance rapidly broken down by the body, supports immune response with antibody and lymphocyte production. Even picky eaters love these delicious chicken liver-flavored chews made with natural ingredients. L-Lysine is an ideal supplement for multi-cat households, boarding, kittens, and senior cats. Keep your kitty happy and healthy with Vetri Lysine Plus chews from VetriScience.
in 2 offers
The lowest price for VetriScience Laboratories Vetri Lysine Plus Chews for Cats 90 Chews right now is $59.52 at eBay.com.au, compared across 2 retailers.
The all-time low was $16.63 on 18 Apr 2023 — today's price is 258% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 3 Nov 2026.
VetriScience Laboratories Vetri Lysine Plus Chews for Cats 90 Chews
Help your cat look and feel their best every day with Vetri Lysine Plus chews. L-lysine is an essential amino acid that supports immune system, eye and respiratory health in cats. It promotes antibody, hormone and enzyme production while also providing antioxidant defense. L-lysine keeps cats healthy by competing with L-arginine to help prevent the replication of upper respiratory pathogens. L-lysine also supports collagen formation and tissue repair to promote healthy skin. DMG, a substance rapidly broken down by the body, supports immune response with antibody and lymphocyte production. Even picky eaters love these delicious chicken liver-flavored chews made with natural ingredients. L-Lysine is an ideal supplement for multi-cat households, boarding, kittens, and senior cats. Keep your kitty happy and healthy with Vetri Lysine Plus chews from VetriScience.
Help your cat look and feel their best every day with Vetri Lysine Plus chews. L-lysine is an essential amino acid that supports immune system, eye and respiratory health in cats. It promotes antibody, hormone and enzyme production while also providing antioxidant defense. L-lysine keeps cats healthy by competing with L-arginine to help prevent the replication of upper respiratory pathogens. L-lysine also supports collagen formation and tissue repair to promote healthy skin. DMG, a substance rapidly broken down by the body, supports immune response with antibody and lymphocyte production. Even picky eaters love these delicious chicken liver-flavored chews made with natural ingredients. L-Lysine is an ideal supplement for multi-cat households, boarding, kittens, and senior cats. Keep your kitty happy and healthy with Vetri Lysine Plus chews from VetriScience.
Last updated at 03/11/2026 23:38:37
Vetriscience Lysine Immunity Health Chews For Cats, Chicken, 90 Count
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
VetriScience Lysine Immunity Health Chews, 250 mg Lysine Plus Immune Supplement for Cats and Kittens with Allergies, Sneezing, Runny Nose and Watery E
Delivery between 10–13 Nov $29
originally posted on vetriscience.com
I bought these for my oldest cat as she is at what is considered an advance age now. I thought I'd try something to help boost her immune system and help her overall health. trying to give them the benefit of the doubt I stick with them for almost two weeks. She wasn't eating them. I think she ate maybe two and that was because I mixed them in with her canned food. I may still keep trying them but it's obvious she's not fond of the taste. For that reason I can't in good conscience recommend them.
originally posted on ebay.com
I TRULY BELIEVE that this Supplement has SAVED my cat who is now 17 yrs old. It was recommended by my Vet when she was diagnosed with Stage 2 Kidney Disease over a year ago. She was very sick. She had lost wt & became lethargic. She is 7.5 lbs. She became food finicky also. I first tried Royal Canin pate' that she ate for awhile and then became finicky again. Now, she gets human canned chicken w/organic chicken broth & vegetable broth mixed in a tupperware bowl. The liquids are what keeps her from not becoming dehydrated. She gets this all day and lets me know when the broth is gone so I can fill her bowl up for overnight. She also likes Fancy Feast Senior 7 yrs old mixed with water like a soup. But, it's the AminAvast that has made her healthy again. KC is so ... MoreI TRULY BELIEVE that this Supplement has SAVED my cat who is now 17 yrs old. It was recommended by my Vet when she was diagnosed with Stage 2 Kidney Disease over a year ago. She was very sick. She had lost wt & became lethargic. She is 7.5 lbs. She became food finicky also. I first tried Royal Canin pate' that she ate for awhile and then became finicky again. Now, she gets human canned chicken w/organic chicken broth & vegetable broth mixed in a tupperware bowl. The liquids are what keeps her from not becoming dehydrated. She gets this all day and lets me know when the broth is gone so I can fill her bowl up for overnight. She also likes Fancy Feast Senior 7 yrs old mixed with water like a soup. But, it's the AminAvast that has made her healthy again. KC is so healthy now. Her bloodwork has gotten better. Her creatinine and BUN is much better. She gets 1 capsule 2 x day. 1cc of water mixed. I mix it with my finger and then draw it up in the syringe. I am amazed but these amino acids and Peptides have helped her tremendously. I am a nurse so you know I would always question recommendations, except I really trust my Vet. KC is now normal and playful like she has been since she was a kitten. You have nothing to lose by trying this with your cat. There are no cures when it comes to Kidney Disease. Give it a week to 2 and you will see a change in your cat.Tell your Vet about it also!
originally posted on vetriscience.com
My cats eat these up like a tasty treat. Some of the other vitamins I've tried to give them weren't very appetizing to them and I had to crush the vitamins up and put them in the food. Both are very excited to have these. They are seniors now and I am more concerned about them having supplements to make sure they get enough vitamins. I put some liquid supplement to help the urinary system in their food so this is a good addition to help keep their immune, eye, and respiratory systems healthy too. I was very glad to see how easy it is to give to them and that they enjoy taking it.
| Is Discontinued By Manufacturer | No |
| Product Dimensions | 8 x 3 x 5 inches; 0.32 Ounces |
| Country of Origin | USA |
| Item Dimensions LxWxH | 8 x 3 x 5 inches |
| Target Audience Keyword | house-cats |
Vetriscience Lysine Immunity Health Chews For Cats, Chicken, 90 Count
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
VetriScience Lysine Immunity Health Chews, 250 mg Lysine Plus Immune Supplement for Cats and Kittens with Allergies, Sneezing, Runny Nose and Watery E
Delivery between 10–13 Nov $29
I bought these for my oldest cat as she is at what is considered an advance age now. I thought I'd try something to help boost her immune system and help her overall health. trying to give them the benefit of the doubt I stick with them for almost two weeks. She wasn't eating them. I think she ate maybe two and that was because I mixed them in with her canned food. I may still keep trying them but it's obvious she's not fond of the taste. For that reason I can't in good conscience recommend them.
I TRULY BELIEVE that this Supplement has SAVED my cat who is now 17 yrs old. It was recommended by my Vet when she was diagnosed with Stage 2 Kidney Disease over a year ago. She was very sick. She had lost wt & became lethargic. She is 7.5 lbs. She became food finicky also. I first tried Royal Canin pate' that she ate for awhile and then became finicky again. Now, she gets human canned chicken w/organic chicken broth & vegetable broth mixed in a tupperware bowl. The liquids are what keeps her from not becoming dehydrated. She gets this all day and lets me know when the broth is gone so I can fill her bowl up for overnight. She also likes Fancy Feast Senior 7 yrs old mixed with water like a soup. But, it's the AminAvast that has made her healthy again. KC is so ... MoreI TRULY BELIEVE that this Supplement has SAVED my cat who is now 17 yrs old. It was recommended by my Vet when she was diagnosed with Stage 2 Kidney Disease over a year ago. She was very sick. She had lost wt & became lethargic. She is 7.5 lbs. She became food finicky also. I first tried Royal Canin pate' that she ate for awhile and then became finicky again. Now, she gets human canned chicken w/organic chicken broth & vegetable broth mixed in a tupperware bowl. The liquids are what keeps her from not becoming dehydrated. She gets this all day and lets me know when the broth is gone so I can fill her bowl up for overnight. She also likes Fancy Feast Senior 7 yrs old mixed with water like a soup. But, it's the AminAvast that has made her healthy again. KC is so healthy now. Her bloodwork has gotten better. Her creatinine and BUN is much better. She gets 1 capsule 2 x day. 1cc of water mixed. I mix it with my finger and then draw it up in the syringe. I am amazed but these amino acids and Peptides have helped her tremendously. I am a nurse so you know I would always question recommendations, except I really trust my Vet. KC is now normal and playful like she has been since she was a kitten. You have nothing to lose by trying this with your cat. There are no cures when it comes to Kidney Disease. Give it a week to 2 and you will see a change in your cat.Tell your Vet about it also!
My cats eat these up like a tasty treat. Some of the other vitamins I've tried to give them weren't very appetizing to them and I had to crush the vitamins up and put them in the food. Both are very excited to have these. They are seniors now and I am more concerned about them having supplements to make sure they get enough vitamins. I put some liquid supplement to help the urinary system in their food so this is a good addition to help keep their immune, eye, and respiratory systems healthy too. I was very glad to see how easy it is to give to them and that they enjoy taking it.
I rescued my cat about a month ago and he’s been dealing with the typical FHV-1 (Feline Herpes Virus) most shelter cats get so my vet recommended I get Lysine to help boost his immune system. Looked online at different products that were either powder or liquid but I like this one cause it’s literally is a treat and my cat loves it! Basically rewarding him for taking medicine lol. It’s been a week of me giving it to him and he still has his nose and eye congestion but I do see an inprovment. Hope to see him get better soon 🙂
I had to wait until now to give my input, because I ....didn't want to "jinx" our situation by a good review too soon. Silly me, but I'm probably not the only one. My little one is gone now but I do believe he was with me an extra year because of Aminavast. He was also getting fluids and epogen along with the Aminavast. We had a touch and go time immediately after he was diagnosed. I had to syringe feed him, etc.. But then I started the Aminavast and he rallied and began eating on his own. My vet said he was a miracle cat to be with me with his high numbers. It was heart failure that finally took us down. I am now giving it to my remaining kits who are all getting senior and developing elevated kidney values. I think they actually like the way it tastes. It's ... MoreI had to wait until now to give my input, because I ....didn't want to "jinx" our situation by a good review too soon. Silly me, but I'm probably not the only one. My little one is gone now but I do believe he was with me an extra year because of Aminavast. He was also getting fluids and epogen along with the Aminavast. We had a touch and go time immediately after he was diagnosed. I had to syringe feed him, etc.. But then I started the Aminavast and he rallied and began eating on his own. My vet said he was a miracle cat to be with me with his high numbers. It was heart failure that finally took us down. I am now giving it to my remaining kits who are all getting senior and developing elevated kidney values. I think they actually like the way it tastes. It's supposed be to tasteless but I've tried it myself and found that it seems to have ...all I can describe it as is a "rich" flavor. I mix a couple of capsules twice a day with a little plate of tuna and also mix with meds and baby food daily for a couple of my other kits. They gobble it right up. The pic is Nahmi before CRF.
Before I could even get these supplements out of the bag, my cats had dug them out of the mailer in an attempt to get them out and eat them so it's safe to say they were a hit. We have 3 cats and all of them have some issues (one has digestive and the other two have some eye issues) so I'm always looking for supplements and treats that can help them out but much of the time, they won't have anything to do with them as they don't like the taste/smell. This treat makes it so they'll actually eat the supplement and therefore get those benefits that can help them out! While its too soon to see the impact, on their health long-term, it's impressive that we've gotten this far so I can't wait to see how things progress.
I brought home a bonded pair of cats that tested negative to feline leukemia, but my Siamese died in 2 days, my longhair months later, then one of the bonded pair. Vet sent body to lab . It came back positive for herpes negative for Covid. I start using Vetri Lysine Plus. It cleared up all symptoms and saved hos life. I wish I had known sooner. The vet thought it was F. I. P I can't have any more cats until this one dies. But I think the lysine cured him. He has to stay on it for life. Please get this information out to Vets. And thank you for this great product. Cat loves it❤️
I got this product for free in exchange for my review. I tried their calming chews before and my 3yr old cat Friday liked them and they kept her calm. I was curious about these immunity chews. I gave her a couple of chews as instructed in the package. An hour later, she puked it up. Also the instructions didn't indicate whether to give chews before meals or as a treat. Just 1-2 chews twice daily.Don't bother wasting your money on this.
I have an outdoor kitty that I feed on my porch. Last winter, he developed a really bad congestion in his nose that he was unable to eat when he bent his head over his food dish. He sneezed frequently, but nothing seemed to come out. My vet recommended the Lysine Plus because she said leaf pollen was very bad. I put it on his food, and within three days, he was clear. Since it boosts cats' immunity, I continue to give this to him daily. He never has runny eyes, nor does he sneeze any more.
So far my cats and I love this product. I have 1 herpes kitty and with these lysine chews she rarely has any "allergy-like" symptoms. If I run out before my order comes in, after a couple days, she gets sniffle-y, so it's a tell-tale sign that these help her. Also, they all eat the chews, I have 2 picky cats and they obviously like the flavor of these.
| Is Discontinued By Manufacturer | No |
| Product Dimensions | 8 x 3 x 5 inches; 0.32 Ounces |
| Country of Origin | USA |
| Item Dimensions LxWxH | 8 x 3 x 5 inches |
| Target Audience Keyword | house-cats |
