NaturVet L-Lysine Immune Support Plus Antioxidants Cat Soft Chews, 60 count

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Help support your feline friend’s health with NaturVet L-Lysine Immune Support Plus Antioxidants. These soft chews are a great option for cats that are responsive to L-Lysine, an essential amino acid that helps support a regular respiratory system. This supplement is vet-recommended to promote a healthy immune system, as well. Plus, they’re a great way to help support your cat’s eye health.

Key Benefits
  • Formulated by veterinarians to help support your feline friend's healthy immune system.
  • Kitty soft chew helps support conditions responsive to L-Lysine, an essential amino acid.
  • Beneficial chew that helps support your furry friend's eye health.
  • Healthy supplement to help support your cat's respiratory health, so he can breathe easier.

Safe use in pregnant animals or animals intended for breeding has not yet been proven. Not to be used with blood thinners or anticoagulants. If animal's condition worsens or does not improve, stop product administration and consult your veterinarian. Warning: For animal use only. Keep out of the reach of children and animals. In case of accidental overdose, contact a heatlh professional immediately. Due to the tasty nature of our products, do not leave package unattended around pets.

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  • Lifestage
  • Food Form
  • Product Form
    Soft Chew
Nutritional Info

Active Ingredients: L-Lysine (Monohydrochloride) 500 mg, Ascorbic Acid (Vitamin C) 100 mg, Astragalus Root 50 mg.

Inactive Ingredients: Brewer’s Dried Yeast, Canola Oil, Dried Potato Product, Flaxseed, Glycerin, Lecithin, Maltodextrin, Mixed Tocopherols, Natural Flavoring, Rosemary Extract, Sorbic Acid, Tapioca Starch, Vegetable Oil, and Water.

Feeding Instructions

2 Soft Chews per day. *30 Day supply based on 2 chews per day.


Why should I include vitamins & supplements in my pet’s diet?

Most commercial pet foods include baseline vitamins and nutrients, but some may not have the adequate amount to suit your pet’s exact health needs. Like in humans, vitamins and supplements can help support your pet’s long-term health, regulating everything from digestion to muscle growth. Consult your veterinarian to determine the best vitamins and supplements for your furry friend.

How often should I give this supplement to my pet?

It is recommended to give the suggested dosage based off your pet’s weight. Please refer to the Feeding Instructions tab and consult with your veterinarian for more information.

Is this supplement safe to use with the medication my pet is currently taking?

If your pet has a medical condition and is taking other medication, we recommend consulting with your veterinarian to ensure that this supplement is safe to use.

My pet is allergic to certain ingredients, will this product be safe to use?

For a complete list of ingredients, click on the 'Nutritional Info' tab, next to the 'Description' tab, just under the product photos. If you are unsure about the safety of this product for your pet, we recommend consulting with your veterinarian.

Does this product come in other product forms?

For a complete assortment of products by the manufacturer of this supplement, click on the link next to the item name at the top of the page. You can also find an assortment of supplements across all product forms on our page.

Solution-Based Products

Whether you want to get ahead of problems down the line or address a specific health issue, NaturVet has the perfect supplement for your pet. Choose a proactive supplement to enhance overall health and wellness, or pick a solution-based supplement that targets specific ailments directly. Your furry family members deserve the best nutrition-based wellness care you can give them!

Solution-Based Products
L-Lysine Supplement

L-Lysine Supplement

L-Lysine can’t be produced by the body, so it must come from diet or supplementation. This essential amino acid works as a building block for protein and plays an important role in feline body functions and overall health. NaturVet’s immune supplement contains added antioxidants that work synergistically with the L-lysine, to help support strong immunity and eye health in your cat.

Hairball Helpers

Cats naturally ingest hair as a normal part of grooming, but sometime the hair gets stuck in the digestive tract and forms a troublesome ball. Help reduce hairball discomfort and vomiting and help stop future issues with these veterinarian-formulated and recommended daily hairball supplements. Your kitty will feel better and so will you!

Hairball Helpers
Urinary Support for Cats

Urinary Support for Cats

Harness the power of cranberry to support urinary tract and bladder health in your cat. Cranberry relief is packed with antioxidant- and vitamin-rich cranberry extract to promote proper urinary and bladder function, plus echinacea to support a strong immune system and good overall health.

Extra Support for All Ages

All-in-One provides support for digestion, joints, skin and coat, with vitamins and minerals. It includes digestive enzymes, probiotics and probiotics, plus glucosamine and chondroitin and omega fatty acids for joint, skin and respiratory health. VitaPet Senior provides a full spectrum of daily vitamins and minerals to help your cat get everything she needs in her golden years.

Extra Support for All Ages

About NatrurVet

NaturVet has been making solution-based supplements and training aids for pets for more than 25 years. Each product they make is veterinarian-formulated and manufactured according to the highest industry standards in their FDA-registered and audited Temecula, CA facility. They proudly carry the coveted NASC Seal on all their labels, a respected symbol of quality assurance for discerning consumers.

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Rating: 2.8 of 5 stars 31 Reviews 31 Reviews 2.8 out of 5 Stars

65% Recommend

65% of reviewersrecommend this product

Rating: 2.8 of 5 stars 2.8 / 5

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31 Reviews

Showing 1-10 of 31 Reviews

  • 5 out of 5 stars

    Healthy and tasty “treats”

    By Brianna on May 3, 2021

    My cats love these “treats” and we love that they help support their immune system! They are a fair size and edible - our babies had 0 issues with these (they love them)!

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  • 1 out of 5 stars

    Not soft chews as stated

    By Patti on Jan 31, 2021

    Prior to NaturVet adding the antioxidant with the Lysine, their plain Lysine soft chews were fine. But now the "Soft Chews" are extremely hard. I couldn't even break them apart into smaller pieces with my fingers. Even using a sharp knife to cut them is not adequate for my older cats to be able to chew them who really need the Lysine everyday. So ill be getting a different brand. Disappointing results.

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  • 1 out of 5 stars

    Cat wouldn't even lick them

    By Nope on Feb 25, 2021

    I couldn't get our cat to hardly come near them, let alone eat them. He is a rescue cat, used to eating whatever he could find and he wouldn't have anything to do with these. They may work for other cats, but not for mine.

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  • 1 out of 5 stars

    Lysine not what expected

    By Barbara5 on Feb 6, 2021

    The chews are hard, cats will not eat. Needed these for 17 yo cats without teeth. Did not meet expectations. Would give zero stars.

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  • 3 out of 5 stars

    Lysine chews

    By Cappie on Mar 3, 2021

    Very dry and hard have to break up and mix in food. Does help the cat if you can get them to eat it.

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  • 1 out of 5 stars

    Hard, dry, not palatable to cat who eats everything

    By Joule on Oct 23, 2020

    These were somewhat hard and dry upon opening the container. My cat refused to eat them which says a lot because she literally eats anything (she will eat the food regurgitated by my other cat!!) After opening them, they turned completely hard and dry very quickly. There were NEVER soft chews. I wish it wasn't such a pain to return online orders. I threw them in the trash and lost out on the money.

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  • 5 out of 5 stars

    Good stuff for cats

    By Anj1 on Jan 16, 2021

    My cat has upper respiratory issues and I got this for him. His issues have nearly disappeared. I highly recommend it.

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  • 4 out of 5 stars

    Limited value if cat won't eat it

    By SoGAHaven on Jan 21, 2021

    Only 2 out of 7 cats would eat it. The ones who need it the most shun it.

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  • 5 out of 5 stars

    Vet Recommended!

    By Alyce24 on Jul 13, 2020

    Our vet advised these because we had a few of our cats needing shots for virus. We only have a few at this time that need them. Once again once they have them they will beg for them by the pantry as this is where they are kept.

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  • 1 out of 5 stars

    Not good for my cat

    By Jean on Aug 19, 2020

    Made my cat vomit , then she wouldn't eat half the day, they are hard an crumbly , I cut them up an she still threw up.

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