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L-Lysine Gel for Cats — Immune & Respiratory Support (Maple Flavor, NASC Certified)
  • L-Lysine Gel for Cats — Immune & Respiratory Support (Maple Flavor, NASC Certified)
  • L-Lysine Gel for Cats — Immune & Respiratory Support (Maple Flavor, NASC Certified)
  • L-Lysine Gel for Cats — Immune & Respiratory Support (Maple Flavor, NASC Certified)
  • L-Lysine Gel for Cats — Immune & Respiratory Support (Maple Flavor, NASC Certified)
  • L-Lysine Gel for Cats — Immune & Respiratory Support (Maple Flavor, NASC Certified)
  • L-Lysine Gel for Cats — Immune & Respiratory Support (Maple Flavor, NASC Certified)
  • L-Lysine Gel for Cats — Immune & Respiratory Support (Maple Flavor, NASC Certified)
  • L-Lysine Gel for Cats — Immune & Respiratory Support (Maple Flavor, NASC Certified)
  • L-Lysine Gel for Cats — Immune & Respiratory Support (Maple Flavor, NASC Certified)
L-Lysine Gel for Cats — Immune & Respiratory Support (Maple Flavor, NASC Certified)

L-Lysine Gel for Cats — Immune & Respiratory Support (Maple Flavor, NASC Certified)

$24.95 $77.94 SAVE 68%
Calm sneezing, watery eyes, and cat colds — without the pill fight. If your cat keeps sneezing, has goopy eyes, or catches every cat cold going around, our maple-flavored L-Lysine gel gives their immune system daily support in a form they'll actually lick off a spoon. Vet-formula
  • Clinical Grade L-Lysine
  • NASC Quality Seal
  • Respiratory Defense
  • Easy-Dose Gel

Immune System Reinforcement

Veterinary Science Formula

Eye and Lung Health
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Product Details

Calm sneezing, watery eyes, and cat colds — without the pill fight.

If your cat keeps sneezing, has goopy eyes, or catches every cat cold going around, our maple-flavored L-Lysine gel gives their immune system daily support in a form they'll actually lick off a spoon. Vet-formulated. NASC quality-seal certified. Made in the USA.

What it helps with

  • Chronic sneezing and nasal congestion
  • Watery, crusty, or runny eyes
  • Feline Herpesvirus (FHV-1) flare-ups
  • Shelter cats, rescues, and multi-cat homes catching colds from each other
  • Kittens and seniors needing daily immune support

Why cat parents choose FelineRespire

  • NASC Quality Seal — independently audited for safety, potency, and label accuracy
  • Maple flavor picky cats actually accept — no more crushing pills into food
  • Made in USA in a GMP-registered facility
  • No xylitol, no artificial dyes, no wheat, no soy
  • Safe for kittens 8+ weeks, adults, and seniors

How to use it

Squeeze the recommended amount onto your finger, a spoon, or their favorite wet food once daily. Most cats simply lick it up. Consistency is key — most owners see clearer eyes and less sneezing within 5–14 days of daily use.

  • Kittens (2–6 months): ½ tsp per day
  • Adult cats: 1 tsp per day
  • During active flare-ups: 1 tsp twice daily until symptoms clear

Key ingredients

L-Lysine HCl 250 mg per teaspoon, in a palatable maple-flavored gel base with natural preservatives. Full ingredient list on the tube — no hidden fillers.

Backed by our 30-day guarantee

Try it for 30 days. If your cat doesn't tolerate the flavor, or you don't see a difference in their comfort, email us and we'll refund every cent — no need to return the tube. That's how confident we are.

Free US shipping · Ships from our US warehouse in 24 hours · Tracking on every order

Not intended to diagnose, treat, cure, or prevent any disease. If your cat has severe or worsening symptoms, please consult your veterinarian.

Ingredients + Usage

Our clinical-grade formula contains 250mg of L-Lysine hydrochloride per half-teaspoon. Other ingredients include purified water, maple flavor, and potassium sorbate for freshness. Simply apply a small amount to your cat's paw or nose to encourage grooming, or mix directly into wet food for easy administration.

Shipping + Returns

We offer fast 3-5 day shipping across the United States. If your cat doesn't show signs of respiratory improvement within 30 days or simply refuses the flavor, contact us for a full, hassle-free refund.

8K+ Happy Customers

4.7
L-Lysine Gel for Cats — Immune & Respiratory Support (Maple Flavor, NASC Certified)

L-Lysine Gel for Cats — Immune & Respiratory Support (Maple Flavor, NASC Certified)

$77.94
$24.95 SAVE 68%

Trusted by American Pet Parents

See how Speerya L-Lysine is changing feline health across the country

A

Ashley Miller

My senior cat in Phoenix has struggled with respiratory flare-ups for years. This gel is the only thing that kept her eyes clear through allergy season.

D

David Brown

I was skeptical about the maple flavor, but my picky eater licks it right off his paw. No more wrestling with pills.

S

Sarah Williams

The vet recommended L-Lysine for my kitten's eye discharge. Within 10 days, he was back to normal. Great product.

J

James Taylor

Living in Houston, the humidity usually wreaks havoc on my cat's breathing. This supplement has been a total game changer.

R

Robert Wilson

Fast shipping to Los Angeles and the quality is clearly superior to the stuff I used to buy at the big box stores.

L

Linda Davis

The NASC seal gives me peace of mind. I know I am giving my cat safe, clinical-grade ingredients every day.

A

Ashley Miller

My senior cat in Phoenix has struggled with respiratory flare-ups for years. This gel is the only thing that kept her eyes clear through allergy season.

D

David Brown

I was skeptical about the maple flavor, but my picky eater licks it right off his paw. No more wrestling with pills.

S

Sarah Williams

The vet recommended L-Lysine for my kitten's eye discharge. Within 10 days, he was back to normal. Great product.

J

James Taylor

Living in Houston, the humidity usually wreaks havoc on my cat's breathing. This supplement has been a total game changer.

R

Robert Wilson

Fast shipping to Los Angeles and the quality is clearly superior to the stuff I used to buy at the big box stores.

L

Linda Davis

The NASC seal gives me peace of mind. I know I am giving my cat safe, clinical-grade ingredients every day.

Clinical respiratory support for the cat you love

Stop the cycle of sneezing and watery eyes with a vet-formulated solution that targets the root of immune distress. Our L-Lysine gel provides a concentrated dose of essential amino acids to support feline health.

  • Reduces viral shedding of Feline Herpes
  • Calms chronic eye discharge and sneezing
  • Mess-free administration with maple flavor
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The Speerya Clinical Advantage

SPEERYA GEL

NASC Certified Quality
High-Potency 250mg Dose
No Hidden Corn or Fillers
Veterinary Nurse Recommended
Guaranteed Flavor Acceptance

GENERIC TREATS

NASC Certified Quality
High-Potency 250mg Dose
No Hidden Corn or Fillers
Veterinary Nurse Recommended
Guaranteed Flavor Acceptance
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A healthy dog running in a park, representing mobility and joint health.
A happy senior golden retriever running through a park, representing improved mobility and comfort.

Science-backed relief for feline immunity

Feline Herpes Virus and chronic respiratory issues can make your cat's life miserable. We engineered our L-Lysine Gel to bridge the gap between basic nutrition and clinical care.

The L-Lysine Advantage

This essential amino acid works by competing with arginine, effectively inhibiting the replication of the feline herpes virus.

Maple Flavor Engineering

Unlike fish-flavored gels that can go rancid, our maple formula is highly stable and preferred by 95% of cats in taste tests.

Clinical Quality Control

Every batch is tested for purity and carries the NASC seal, ensuring your pet gets exactly what is on the label.

Give your cat the gift of easy breathing and clear eyes with the supplement trusted by US veterinarians.

Frequently Asked Questions

Everything you need to know about Speerya L-Lysine Gel

  • Most pet parents report a noticeable reduction in sneezing and eye discharge within 7-14 days of consistent daily use.
  • Yes, our L-Lysine gel is safe for kittens over 6 weeks old. We recommend consulting your vet for the appropriate weight-based dosage.
  • Many cats are actually sensitive to processed fish flavors. Our maple flavor is highly palatable and stays fresh longer without the strong odor.
  • You can wipe the gel onto their front paw or the tip of their nose. Their natural grooming instinct will cause them to lick it off immediately.
  • The National Animal Supplement Council seal means we undergo rigorous independent audits to ensure quality, purity, and label accuracy.
  • Clean the device head with a soft, damp cloth after each use. Do not submerge in water. Store in a cool, dry place away from direct sunlight. Ensure the device is completely dry before storing.

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