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10 Best lysine for cats in Canada
Best Choice01VetoquinolVetoquinol Enisyl F Oral Paste for Cats L Lysine – 100 ml
9.7Exceptional
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Value for Money02VetoquinolVetoquinol Viralys Daily L-Lysine Powder for Cats and Kittens, Fish Flavored Lysine Supplement for Cats and Kittens to Support Immune Health, Normal Eye Function and Respiratory Health, 100gm
9.6Exceptional
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- 03Vetoquinol
Vetoquinol Viralys Oral Gel Immune Support – L Lysine – 142 g
Main highlights- ORAL GEL FOR CATS: Give twice daily or as directed by your veterinarian.
- HELPS SUPPORT A HEALTHY IMMUNE SYSTEM: Lysine supports natural defense of cats.
- EASE OF ADMINISTRATION: Place a small amount on cat’s nose to stimulate taste interest. May be administrated with a syringe or teaspoon.
- ATTRACTIVE TASTE FOR YOUR CAT: A highly palatable gel
- ACTIVE INGREDIENTS OF NATURAL ORIGIN: Contains L-Lysine Hydrochloride.
9.5Excellent
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- 04Vetoquinol
Vetoquinol Viralys Powder Immune Support – L Lysine – 100 g
Main highlights- TASTY POWDER FOR CATS: Give twice daily or as directed by your veterinarian.
- HELPS SUPPORT A HEALTHY IMMUNE SYSTEM: Lysine supports natural defense of cats.
- EASE OF ADMINISTRATION: A highly palatable powder that may be sprinkled over dry food or mixed with canned food.
- ATTRACTIVE TASTE FOR YOUR CAT: With a tasty flavoring agent
- ACTIVE INGREDIENTS OF NATURAL ORIGIN: Contains L-Lysine Hydrochloride.
9.3Excellent
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- 05OptixCare
Optixcare 72-2 L-Lysine Chews for Cats & Kittens, 60 Count (Pack of 1)
Main highlights- Tasty chicken flavor cats love
- Resealable pouch
- One bag lasts 2 months
9.2Excellent
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- 06Vetoquinol
Vetoquinol Viralys Gel L-Lysine Supplement for Cats, 5oz - Cats & Kittens of All Ages - Immune Health - Sneezing, Runny Nose, Squinting, Watery Eyes - Palatable Maple Flavor Lysine Gel
Main highlights- Viralys is recommended as an aid in the treatment of Feline Herpes Virus.
- Viralys Gel is a lysine supplement gel for cats.
- Feline herpes virus is an upper respiratory virus of cats.
9.1Excellent
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- 07Fera Pet Organics
Fera Pets Lysine for Cats - Immune Support Powder Food Topper, 60 Scoops
Main highlights- Veterinarian formulated: Dog and cat vitamins and supplements crafted by our Co-Founder, Veterinarian Dr. Dulake; this bears the NASC quality seal, made in the USA, GMP-compliant, and does not contain colors, dyes or preservatives
- Satisfaction guaranteed: Customer service is our top priority. We have a full, money-back guarantee. If you’re not completely satisfied with our product, please contact us.
- Promote immune health: Fera’s immune support supplement for cats is made from a natural formula of Lysine, postbiotics, and echinacea that supports natural immune defenses and gut health
- High quality ingredients: Our unique blend of Lysine, EpiCor Postbiotic, olive leaf extract, and echinacea supports your cat’s immune function to help maintain eye health, respiratory lung health, and digestive health
- Consistency produces results: See noticeable improvements in your cat's immune health in just 4 weeks with our easy-to-use food topper powder
9.0Excellent
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- 08Vetri-Science Laboratories
Vetri-Science Feline Vetrilysine and Soft Chews, 120-Count
Main highlights- L-Lysine is an amino acid that supports antibody, hormone and enzyme production
- L-Lysine competes with L-Arginine, which is the amino acid required by the herpes virus to replicate
- Formula designed to supportimmune system function
8.7Very Good
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- 09Generic
L-Lysine HCl Oral Paste for Cats – 100 mL Veterinary-Grade Supplement That Supports Immune, Respiratory & Eye Health – Easy-to-Use Oral Paste Formula
Main highlights- Unlike ordinary supplements — L-Lysine HCl Oral Paste is specifically formulated for cats to support immune strength, clear breathing, and healthy eyes with every dose.
- Veterinary-trusted formula — Made by Dominion Veterinary Laboratories Ltd., this professional-grade paste delivers the amino acid L-Lysine HCl in a convenient daily format recommended by veterinarians.
- Supports daily health — Ideal for cats prone to watery eyes, sneezing, or respiratory flare-ups. Helps maintain wellness during seasonal changes, stress, or boarding.
- Developed with simplicity in mind — Easy to use and easy to love. Apply directly into your cat’s mouth or mix into food — no powders, no pills, no fuss.
- Convenient 100 mL tube — Great for single or multi-cat homes. Portable, resealable, and shelf-stable for routine use.
8.6Very Good
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- 10APXL
24 in 1 Taurine for Cats Vitamins Treats, Cat Treats for Immunity, Joints, Skin, Coat & Heart, Cat Vitamins with L-Lysine for Immune & Coenzyme Q10, Zero Artificial Lures - 95 Days Supply
Main highlights- 【Zero Artificial Lures, Satisfying After Sales Service】Unlike other cat multivitamin loaded with artificial attractants, we use only real chicken meal and natural flavors—no chemical lures, no synthetic palatants. If your cat still refuses them, just contact our customer service team. We're here to make it right.
- 【Strong Heart, Clear Vision】24-in-1 cat vitamins is rich in Taurine (100mg), L-Lysine (30mg), and Coenzyme Q10 (10mg). Taurine is essential for heart and eye health, CoQ10 energizes heart muscle cells, and L-Lysine supports immune function. This triple-action formula is especially beneficial for senior cats, helping them stay active, vibrant and youthful every day.
- 【Rich in Fish Oil, Soft & Shiny Coat】Formulated with 60mg fish oil (Omega-3), rich in EPA and DHA, to deeply nourish the skin, reduce dandruff and dryness, and leave the coat softer, shinier with less shedding. Cat treats also supports joint comfort and cognitive health, radiating vitality from the inside out. It gives your cat a silky, smooth coat—proof of health you can feel with every touch.
- 【Food-Grade Quality, Active Body Health】We partner with food-grade certified facilities to ensure every chew is safe, edible, and consistently high-quality. Our 24 in 1 vitamins for cats helps with common issues like poor appetite, weight loss, and stiff movement. If your cat is hesitant at first, simply crumble the chew into wet food for a smooth transition.
- 【95-Day Supply, Better Value】Please follow the recommended feeding guide on the package based on your cat's weight. One bottle provides up to 95 days of use—35 days more than 23-in-1 taurine for cats vitamins treats, 45 days more than 17-in-1 cat supplements. Lower daily cost, longer-lasting support—a smart choice for every pet parent.
- 【24 Nutrients, Higher Potency】Each chew delivers 24 scientifically balanced essential nutrients, including Vitamin A, B1, B2, B6, B12, C, D3 and E, ect. With key ingredients at significantly higher levels than competitors. For example, our Taurine content is 100mg, compared to just 18mg in typical 23-in-1 cat vitamins for indoor cats. More nutrition, more value, more effective daily support.
8.4Good
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