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10 Best lysine supplement for cats in Canada
Best Choice01VetoquinolVetoquinol Viralys Powder Immune Support – L Lysine – 600 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.
9.8Exceptional
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Value for Money02VetoquinolVetoquinol Enisyl F Oral Paste for Cats L Lysine – 100 ml
9.6Exceptional
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- 03Vetoquinol
Vetoquinol 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
9.5Excellent
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- 04Vetoquinol
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.
9.4Excellent
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- 05Vetoquinol
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.
9.2Excellent
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- 06Vetoquinol
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.
9.1Excellent
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- 07OptixCare
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
9.0Excellent
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- 08Generic
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.
8.9Very Good
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- 09Fera 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
8.8Very Good
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- 10Raw Support
Raw Support Healthy Cranberry & L-Lysine for Dogs & Cats | Urinary Tract & Bladder Support Supplement | Immune System & Kidney Health Support | Product of Canada | 128g
Main highlights- Veterinary Health Product Notification Number - NN.M3L9
- SUPPORTS URINARY TRACT HEALTH & BLADDER WELLNESS – Healthy Cranberry & Lysine is formulated to support urinary tract health, bladder wellness and normal urinary function in dogs and cats. Featuring cranberry and L-Lysine, this daily supplement helps support long-term urinary health as part of a proactive wellness routine.
- SUPPORTS RESPIRATORY & SEASONAL WELLNESS – L-Lysine is commonly used by cat owners as part of daily wellness programs designed to support normal respiratory health, seasonal wellness and overall immune system balance.
- SUPPORTS KIDNEY & URINARY WELLNESS – Cranberry is traditionally used in urinary wellness formulas and helps support a healthy urinary tract environment while promoting overall urinary and kidney health for dogs and cats of all breeds and sizes.
- SUPPORTS IMMUNE SYSTEM HEALTH – Formulated with L-Lysine, an essential amino acid commonly used to support normal immune system function in dogs and cats. Ideal for pet owners looking to support everyday immune health and overall wellness.
- EASY DAILY POWDER FOR DOGS & CATS – This premium powder supplement mixes easily with food and is suitable for dogs and cats of all ages. Ideal for supporting urinary health, immune function, bladder wellness and overall daily health as part of a balanced nutrition plan.
8.6Very Good
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