Felisyl L-Lysine Gel for Cats & Kittens, 5 oz Salmon Flavor — Daily Immune & Respiratory Support

This veterinarian-formulated L-lysine gel delivers a bioavailable dose of an essential amino acid to help cats and kittens maintain healthy immune responses and reduce symptoms commonly associated with feline upper respiratory issues. Easy to apply and made in the USA under NASC standards, the smooth gel offers a palatable alternative to pills and capsules, helping owners administer consistent daily doses to picky eaters, kittens, and adult cats.

How does Felisyl L-Lysine Gel support my cat's immune system?

Felisyl supplies high-quality L-lysine, an amino acid that supports normal immune function and helps cats maintain healthy antibody levels. Regular supplementation can be especially helpful for cats prone to viral flare-ups, seasonal stress, or immune challenges.

• Contains pharmaceutical-grade L-lysine formulated for feline use
• Daily dosing helps sustain steady amino acid levels
• Vet-developed recipe ensures appropriate bioavailability

Will this gel help with sneezing, runny nose, or watery eyes?

The gel is intended to ease common upper respiratory symptoms by supporting the body’s natural response mechanisms. While not a cure, consistent L-lysine supplementation can reduce frequency and severity of symptoms related to viral or stress-triggered episodes.

• Aids comfort for mild congestion and eye discharge
• Can be used alongside veterinary treatments when advised
• Gentle formulation suitable for daily respiratory support

How do I give the Felisyl gel to a finicky cat or kitten?

The smooth, salmon-flavored gel is designed for simple, stress-free administration: most cats lick it from a dish, a paw, or directly from the applicator. This makes dosing quicker and less confrontational than pills or capsules.

• Place on paw, nose, or food bowl for voluntary licking
• Suitable for kittens and adult cats who dislike pills
• 5 oz tube offers multiple daily doses for small to medium households

Is Felisyl safe and made to trusted standards?

Felisyl is produced in the USA under NASC-certified manufacturing, and its formula was developed with veterinary input. The product is intended for daily use in healthy kittens and cats; follow your veterinarian’s guidance for sick or medicated pets.

• Vet-formulated and designed for feline use
• NASC-certified production ensures purity and consistency
• Manufactured in the USA with quality controls

Who is this for: Felisyl L-Lysine Gel is aimed at cat owners seeking an easy-to-administer, daily immune and upper respiratory support for kittens, adult cats, or seniors—especially those who are prone to occasional sneezing, watery eyes, or stress-related flare-ups, and who prefer a tasty salmon-flavored gel over pills.

Ingredients

Water, L-Lysine Monohydrochloride, Stearic Acid, Soybean Oil, Cetyl Alcohol, Lecithin, Salmon flavor, Methylparaben (Preservative), Potassium Sorbate (Preservative), Sodium Benzoate (Preservative), Carboxymethylcellulose, Ascorbic Acid, Xantham Gum.