---
product_id: 49522471
title: "Felisyl L-Lysine Gel for Cats & Kittens (5oz) – Immune System, Respiratory & Eye Health Support. Reduces Sneezing, Runny Nose & Watery Eyes. Daily Salmon-Flavor Supplement – Made in USA (1 Pack)"
brand: "felisyl"
price: "€ 47.22"
currency: EUR
in_stock: true
category: "Felisyl"
url: https://www.desertcart.hr/products/49522471-felisyl-l-lysine-gel-for-cats-and-kittens-5oz-immune
store_origin: HR
region: Croatia
---

# Salmon-flavored gel for easy dosing 1000mg L-Lysine for immune boost Made in USA, NASC certified quality Felisyl L-Lysine Gel for Cats & Kittens (5oz) – Immune System, Respiratory & Eye Health Support. Reduces Sneezing, Runny Nose & Watery Eyes. Daily Salmon-Flavor Supplement – Made in USA (1 Pack)

**Brand:** felisyl
**Price:** € 47.22
**Availability:** ✅ In Stock

## Summary

> 🐾 Keep your cat thriving with every lick—because healthy cats are happy cats!

## Quick Answers

- **What is this?** Felisyl L-Lysine Gel for Cats & Kittens (5oz) – Immune System, Respiratory & Eye Health Support. Reduces Sneezing, Runny Nose & Watery Eyes. Daily Salmon-Flavor Supplement – Made in USA (1 Pack) by felisyl
- **How much does it cost?** € 47.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/49522471-felisyl-l-lysine-gel-for-cats-and-kittens-5oz-immune)

## Best For

- felisyl enthusiasts

## Why This Product

- Trusted felisyl brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Immune Powerhouse:** Premium 1000mg L-Lysine supports your cat’s natural defenses against FHV-1 and seasonal stress.
- • **Picky Eater Approved:** Smooth, tasty salmon-flavored gel that cats love—no more pill battles or stress.
- • **Breathe & See Clearly:** Reduces sneezing, runny nose, and watery eyes to keep your feline friend comfortable and active.
- • **Pure & Proudly American:** Manufactured under strict NASC standards in the USA for unmatched quality and safety.
- • **Vet-Formulated Confidence:** Trusted by veterinarians for safe, daily use in kittens, adults, and seniors with proven results.

## Overview

Felisyl L-Lysine Gel is a vet-formulated, salmon-flavored daily supplement delivering 1000mg of L-Lysine to support immune, respiratory, and eye health in cats and kittens. Made in the USA under NASC-certified standards, it effectively reduces symptoms like sneezing, runny nose, and watery eyes, making it ideal for cats prone to feline herpes virus flare-ups or seasonal respiratory issues. Easy to administer and loved by picky eaters, this gel ensures your cat stays comfortable and protected year-round.

## Description

Buy Felisyl L-Lysine Gel for Cats & Kittens (5oz) – Immune System, Respiratory & Eye Health Support. Reduces Sneezing, Runny Nose & Watery Eyes. Daily Salmon-Flavor Supplement – Made in USA (1 Pack): L-Lysine - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- Immune System Support with L-Lysine – Powered by premium L-Lysine for cats, an essential amino acid that supports immune function and helps maintain healthy antibody levels. Ideal for cats and kittens prone to feline herpes virus (FHV-1) flare-ups, seasonal stress, or general immune challenges.
- Respiratory & Eye Health Relief – Helps ease cat sneezing, runny nose, congestion, and watery eyes associated with common upper respiratory issues in cats. Supports clear breathing, eye comfort, and overall wellness—perfect for cats needing gentle respiratory support or allergy relief.
- Tasty, Easy-to-Give Lysine Gel for Cats – A smooth, salmon-flavored lysine gel for cats that most cats lick up willingly. No more pill struggles—just place the gel on your cat’s paw, nose, or dish for effortless daily dosing. Great for picky eaters and kittens.
- Vet-Formulated & Recommended – Created by veterinarians to deliver targeted immune, respiratory, and eye health support in a highly bioavailable L-Lysine gel for cats. Safe for daily use in kittens, adults, and senior cats. Trusted by pet parents and designed for real results.
- NASC Certified Quality – Made in the USA – Manufactured under rigorous NASC standards for purity and safety. This high-quality cat lysine gel is proudly made in the USA, ensuring consistency and peace of mind with every dose.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00MO9SHBE |
| ASIN  | B00MO9SHBE |
| Active Ingredients | L-Lysine Monohydrochloride |
| Allergen Information | Codfish Free |
| Best Sellers Rank | #2,620 in Pet Supplies ( See Top 100 in Pet Supplies ) #14 in Cat Supplements & Vitamins |
| Brand Name | Felisyl |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,219) |
| Date First Available  | December 15, 2013 |
| Flavor | Gel (5 oz.) |
| Global Trade Identification Number | 00814087006547 |
| Included Components | 1 |
| Item Form | Gel |
| Item Type Name | Felisyl L-Lysine Gel for Cats - Immune System Support - Supplement Support for Healthy Tissue, Respiratory, and Vision - Salmon-Flavored - Made in the USA - 5 oz |
| Item model number  | FEL6547 |
| Manufacturer | Pet Health Solutions / HealthyPets, Inc. / Sogeval |
| Manufacturer  | Pet Health Solutions / HealthyPets, Inc. / Sogeval |
| Manufacturer Part Number | FEL6547 |
| Model Number | FEL6547 |
| Number of Items | 1 |
| Pet Type | Cat |
| Product Benefits | Aids Respiratory & Eye Health - Helps reduce the frequency and severity of respiratory discomfort, sneezing, runny nose, and watery eyes associated with environmental stressors., Eases Upper Respiratory Symptoms - Promotes normal respiratory tract function, making it ideal for cats prone to congestion, nasal discharge, or seasonal flare-ups., Helps Manage Stress-Related Flares - Supports a healthy… |
| Product Dimensions  | 8 x 3 x 2 inches; 0.63 ounces |
| Specific Uses For Product | Active |
| Target Species | Cat |
| UPC | 814087006547 |
| Unit Count | 1.00 Count |
| Vitamins And Minerals | 1000 Milligrams |
| Volume | 5 Fluid Ounces |
| Warranty Description | 1 Month |

## Product Details

- **Active Ingredients:** L-Lysine Monohydrochloride
- **Brand:** Felisyl
- **Flavor:** Gel (5 oz.)
- **Item Form:** Gel

## Images

![Felisyl L-Lysine Gel for Cats & Kittens (5oz) – Immune System, Respiratory & Eye Health Support. Reduces Sneezing, Runny Nose & Watery Eyes. Daily Salmon-Flavor Supplement – Made in USA (1 Pack) - Image 1](https://m.media-amazon.com/images/I/71pQ7a6ZuAL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: What if my cat is a picky eater?**
A: Felisyl features a palatable salmon-flavored gel many cats enjoy, making daily supplementation easier for picky cats and sensitive eaters.

**Q: How is Felisyl different from other L-Lysine products?**
A: Veterinarian-formulated in the USA with premium pharmaceutical-grade L-Lysine and a salmon flavor cats actually enjoy.

**Q: Will this upset my cat’s stomach?**
A: The smooth gel format is designed for easy daily administration and gentle routine use.

**Q: Is Felisyl safe for kittens and adult cats?**
A: Felisyl is suitable for cats of all ages when used as directed. Many cat parents use it for both kittens and adult cats needing immune or respiratory wellness support.

**Q: Is this only for sick cats?**
A: No - many cat owners use Felisyl as part of a daily wellness routine to support immune, respiratory, and eye health.

## Frequently Bought Together

- Felisyl L-Lysine Gel for Cats (5oz) – Supports Immune, Respiratory, and Eye Health. Eases Sneezing, Runny Nose, and Watery Eyes. Tasty Salmon Flavor - Made in The USA
- HomeoPet Feline Nose Relief, Safe and Natural Nasal and Sinus Supplement for Cats, 15 Milliliters
- VAZULI Pet Eye Health Ointment for Dogs, Cats, Cattle, Sheep, Horses, Birds and Puppies, Kittens 1/8 oz /3.5gr - 1 Tube

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**Shop now:** [https://www.desertcart.hr/products/49522471-felisyl-l-lysine-gel-for-cats-and-kittens-5oz-immune](https://www.desertcart.hr/products/49522471-felisyl-l-lysine-gel-for-cats-and-kittens-5oz-immune)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-07-18*