Trulysine L-Lysine for Cats Immune Support Oral Powder 4oz/100g - Cats & Kittens of All Age, Sneezing, Runny Nose Squinting, Watery Eyes - Fish & Poultry Flavor (U.S.A)(100 Grams ( 500mg / Scoop))

I feel like it gives them more energy and they're absorbing more nutrients from their food. Their poop is also less than in the past.

Baby Rue has 30 percent vision in one eye. I prefer natural over chemicals, and the vet recommended this since her eyes water. And Amazon is cheaper in price.

Works well for my cats

I regularly give this to my cats! It helps them ward off uri or even any sneezes!!

I have purchased this many times for my cat who has had a viral infection which causes his eyes to be runny and have discharge. He receives this daily on recommendation from his veterinarian and has only had eye problems on the occasion that I did not give this to him thinking that he was fine after not having eye issues for over two years. Within three weeks of not taking this, his eyes were covered in goopy crust. He loves the flavor and will never be without it again. Easy to sprinkle on his food. Inexpensive and lasts a long time.

I bought it as it was recommended by the vet for my cat. She eats it as we mix it with her food, else she does not seems to be interested. I will wait for at least a week or two to see how it works out for her.

I got this for a stray kitten. The kitten started sneezing and coughing A LOT. (After doing a bit of research, I figured the kitten must have caught a cold and learned that both brewer's yeast and Lysine can assist cats and kittens in recovering from such infections. I also read it can help prevent cold infections, flea infestations, and tick infestations.) The kitten's health did improve greatly, however, the kitten keeps relapsing. (He will be fine for a few days, and then start sneezing again. Then be fine for a few days, then start sneezing again.) I am convinced that the product has greatly aided the kitten's health. However, if the kitten does not fully recover in the next few days, I will be trying another brand. Sincerely hoping he recovers without having to switch brands. The kitten readily eats this one and the price is within my budget. Note: The ONLY reason I gave this product 4 stars is because the kitten keeps relapsing. If it were not for that, I would have given this product 5 stars. UPDATE: The stray kitten is well again. The scoop is very small. I think I was not giving the kitten a full half scoop. At least, a few days after I increased the amount I was giving the kitten, the kitten stopped relapsing. Upgrading my 4 star rating to 5 stars. Super wonderful stuff!! I am keeping the kitten on this supplement as a preventive measure. Another awesome thing is the kitten has no fleas, ticks, lice, mites, or other external parasites. I am convinced the brewers yeast in this product is what is deterring said parasites from being on the kitten. Again, super awesome stuff!! I highly recommend!!

This is my cats absolute favorite lysine. They literally beg for it, and sometimes won't even eat their kible until I add their "dustys" to it. If you're looking for a lysine to buy your kitties, this is the one!

My cats like the taste better than the more well-known brand and this one is a wee bit cheaper and is the same strength. My cats even stick their head in the jar and want to lick it!