Coco and Luna L-Lysine Immune Support Salmon Flavor Powder Cat Supplement, 4-oz jar

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At a Glance

  • Non-GMO
  • Immune Support
  • All Lifestages
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$22.99 Chewy Price
($5.75 /oz)
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About This Item

Details

  • Supports eye, immune and respiratory system health in cats.
  • Helps to fight off issues like sneezing, watery and inflamed eyes and runny noses.
  • Made with natural ingredients.
  • Just mix the powder into your pet’s food daily for easy feeding.
  • Made in the USA.

Ingredient Information

Instructions

Learn More About Coco and Luna From Our Team of Experts

Frequently bought together

Questions & Answers

15 Customer Questions

Can this product be used with Coco and Luna Probiotics with Inulin Stomach & Digestion Powder Probiotic Supplement for Cats?

I did not get a scoop. How much is each scoop?

Answer by Chewy • Mar 04, 2021
The scoop size for this product is a 1 gram scoop, which is similar to a teaspoon.

What are the other ingredients in this product?

Answer by Chewy • Aug 09, 2021
Vita Pet Life Coco and Luna L-Lysine Immune Support Salmon Flavor Powder Dog & Cat Supplement contains as an active ingredient L-Lysine Hydrochloride and the inactive ingredients are as follows: Magnesium Stearate, Maltodextrin,, Natural/Artificial Salmon flavor and SIlicon Dioxide.

Where is this product made?

Answer by Chewy • Jan 29, 2021
This supplement is made in the U.S.
Reviews
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4.3
Rated 4.3 out of 5 stars
332 Ratings
Terms & Conditions

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Effectiveness

82% Positive

Form and Administration

84% Positive

Ingredients

85% Positive

Nutritional Value

83% Positive

147 Customer Reviews

Rated 5 out of 5 stars
By Risa on Dec 18, 2025

Coco and Luna L-Lysine saved my babies.

Both my babies were adopted with respiratory issues. My little girl got over it, but my little boy has a chronic respiratory issue. If it wasn’t for Coco and Luna,

Both my babies were adopted with respiratory issues. My little girl got over it, but my little boy has a chronic respiratory issue. If it wasn’t for Coco and Luna, I don’t know whatI would’ve done. There was a short time when I had run out and did not have any to give to him. It was about a five day stretch and within those five days, his respiratory issues started to flare. As soon as I started him on the L.-Lysine within a couple of days it was back under control again. I never run out of it anymore. It’s been two years thank you Coco and Luna chewy!

Rated 5 out of 5 stars
By Claudette on Jan 16, 2026

Positive Results!

Our vet suggested adding this supplement to all 3 of our cat’s diets. Our 9 month old is developing her immune system, our 18 month old is vigorous and strong, and

Our vet suggested adding this supplement to all 3 of our cat’s diets. Our 9 month old is developing her immune system, our 18 month old is vigorous and strong, and our 13 year old’s immune system is declining. All 3 LOVE this salmon powder mixed in with their morning soft food. No more runny eyes or drippy noses! We are ecstatic!

Rated 4 out of 5 stars
By Sunny on Nov 30, 2025

Keeps her eyes from running!

She snorts a lot still but it keeps her eyes from running. The only thing I don’t like is that it hardens into blocks toward the bottom of the jar so I am never

She snorts a lot still but it keeps her eyes from running. The only thing I don’t like is that it hardens into blocks toward the bottom of the jar so I am never able to use more than 1/2 to 2/3 of the jar.

Rated 5 out of 5 stars
By Laura on Sep 18, 2025

My really helped with sneezing and wheezing

My sweet girl has FHV-1 and her symptoms are congestion, sneezing and a wheezing. L-Lysine doesn’t work for every cat, but it sure works for her. The sneezing and

My sweet girl has FHV-1 and her symptoms are congestion, sneezing and a wheezing. L-Lysine doesn’t work for every cat, but it sure works for her. The sneezing and wheezing are all but gone, and I’m sure she feels a lot better because she’s been playing more. This won’t treat a cold, but if you have an FHV-1 cat, then I recommend trying this. :-) Oh! And it mixes easily with her wet and dry food. She just gobbles it up.

Rated 4 out of 5 stars
By Christina on Sep 25, 2025

No stuck trying to get your cat to eat a treat they don’t like

I like that you can add this to a food or treat that your cat already enjoys so you can be sure they’ll actually eat it. I had some trouble with it causing an upset

I like that you can add this to a food or treat that your cat already enjoys so you can be sure they’ll actually eat it. I had some trouble with it causing an upset stomach and vomiting for my cat, but I just mixed it in to her food along with some pumpkin tummy topper from tiki cat, and the problem was solved.

Rated 4 out of 5 stars
By LM on Nov 9, 2025

Helps in many ways but the flavor offends the cat

Our very picky elderly cat doesn't seem to like the taste when combined with her wet food to the point that she eats a lot slower. It smells a bit burnt so that

Our very picky elderly cat doesn't seem to like the taste when combined with her wet food to the point that she eats a lot slower. It smells a bit burnt so that must be why.

Rated 5 out of 5 stars
By Shari on Jul 26, 2025

lifesaver

I rescued a feral cat over a year ago. He was near death, skinny with abcesses. Since I could not handle him, I started him on wet food. Then I read that this

I rescued a feral cat over a year ago. He was near death, skinny with abcesses. Since I could not handle him, I started him on wet food. Then I read that this product helped with URI's. It does. He was so congested, sneezing with mucky eyes. On this product, his eyes cleared up within a week. His congestion will probably be lifelong. He is OK as long as he gets a daily dose of the L-Lysine. I've tried to wean him off of it but he immediately gets worse. He is relatively healthy as long as he has this. He is now able to eat kibble and seems very happy. He has not left my yard in months and comes running to be petted every time I go outside. I still cannot hold him or crate him so no vet is possible. I did trap him for feral rescue so he was neutered and returned. L-lysine is a miracle for my cat.

Rated 2 out of 5 stars
By John on Sep 21, 2025

poor packaging

the items were not packed with the appropriate dunnage and some damage was evident. also the main box showed fatigue from the constant motion of the contents

the items were not packed with the appropriate dunnage and some damage was evident. also the main box showed fatigue from the constant motion of the contents. i wish i could say this is an abnormality but this seems to be SOP

Rated 5 out of 5 stars
By Gudrun on Nov 2, 2025

Dissolves nicely into food

My cat did not refuse the food with product mixed in. Seems to help reduce symptoms dramatically.

My cat did not refuse the food with product mixed in. Seems to help reduce symptoms dramatically.

Rated 5 out of 5 stars
By Rachel on Jun 26, 2025

Helped my cat so much!

This product has helped my cat so very much. His eyes no longer have gunk buildup. He used to get colored eye boogers and hated when I would wash his face. Ever

This product has helped my cat so very much. His eyes no longer have gunk buildup. He used to get colored eye boogers and hated when I would wash his face. Ever since putting this in his wet food he is sneezing less and itching less. It honestly has made his life so much better. Thank you so much!