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)
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Product description
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Why Cat Parents Choose Felisyl
Easy-to-give daily gel formulated to help support immune health, clear eyes, and respiratory wellness -without the struggle of pills or powders.
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.Felisyl Customer Testimonial
- The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.
Birttany's Testimonial on Felisyl
Trusted Support for Cats in Need of Extra Care
Felisyl was designed to make daily immune support easier for both cats and the people who care for them.
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Daily Support Cats Actually Enjoy
Salmon-flavored L-Lysine wellness support for everyday routines.
The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.FELISYL L-LYSINE GEL
- The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.
Felisyl L-Lysine Gel
Immune Support Made Easy for Cat Parents
Felisyl helps support immune system health while giving cat parents a simple, stress-free daily routine cats actually enjoy.
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What if my cat is a picky eater?
Felisyl features a palatable salmon-flavored gel many cats enjoy, making daily supplementation easier for picky cats and sensitive eaters.
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How is Felisyl different from other L-Lysine products?
Veterinarian-formulated in the USA with premium pharmaceutical-grade L-Lysine and a salmon flavor cats actually enjoy.
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Will this upset my cat’s stomach?
The smooth gel format is designed for easy daily administration and gentle routine use.
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Is Felisyl safe for kittens and adult cats?
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.
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Is this only for sick cats?
No - many cat owners use Felisyl as part of a daily wellness routine to support immune, respiratory, and eye health.
L-Lysine Immune Support
| Customer Reviews | 4.4 out of 5 stars 2,238 | 3.2 out of 5 stars 70 | 4.2 out of 5 stars 731 | 4.0 out of 5 stars 45 |
| Price | $18.99$18.99 | $16.50$16.50 | $16.44$16.44 | $17.49$17.49 |
| Vet-Formulated | ✔ | ✔ | ✔ | ✔ |
| NASC Seal | ✔ | ✔ | ✔ | ✔ |
| Premium L-Lysine | ✔ | ✔ | ✔ | ✔ |
| Made in the USA | ✔ | ✔ | ✔ | ✔ |
| Administration Method | Tasty Smooth Gel | Delicious Soft Chews | Easy to Mix Granules | Convenient Liquid |
- 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.
| Vendor | Felisyl |
|---|---|
| Sku | B00MO9SHBE |
| Barcode | 744110139372 |
| Weight | 0.018 kg |
30-Day Returns
We want you to feel confident when shopping at Pawpello. If you are not fully satisfied with your order, you may request a return within 30 days of delivery.
Items should be unused, in their original condition, and in the original packaging when possible. For hygiene and safety reasons, opened food, used grooming products, and heavily used pet items may not be eligible for return unless they arrive damaged or defective.
To start a return, please contact us at support@pawpello.com with your order number and a brief reason for the return. Once your return is approved, we will provide the next steps.
Refunds are issued to the original payment method after the returned item is received and inspected. Shipping times and bank processing times may vary.
We currently do not offer direct exchanges. If you need a different item, size, or variant, you can place a new order and return the original item if eligible.
