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
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
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About This
- Immune System Support – Packed with L-Lysine (an essential amino acid) to bolster your cat’s immune defenses. A stronger immune system helps keep your kitty healthier and more resistant to common feline illnesses, giving them the best chance at a long, happy life.
- Respiratory & Eye Health – Formulated to support clear breathing and overall wellness in cats. Felisyl’s immune-boosting action helps ease sneezing, runny nose, and watery eyes associated with common respiratory issues, so your cat can breathe easy and stay comfortable every day.
- Tasty, Easy-to-Give Gel – Highly palatable salmon-flavored gel that cats love, making supplement time feel like a treat. No more struggles with pills – simply place the gel on your cat’s paw or nose and they’ll lick it off willingly, ensuring stress-free daily dosing.
- Vet-Formulated & Trusted – Developed by veterinarians for optimal feline health benefits. Felisyl is also vet-recommended, trusted by vets for its proven benefits and positive impact on cats’ lives. Pet parents can feel confident knowing this immune support gel is backed by experts and real results.
- NASC Certified Quality, Made in USA – Manufactured to the highest quality and safety standards set by the National Animal Supplement Council. Felisyl carries the NASC Quality Seal and is proudly made in the USA, so you can trust you’re giving your cat a safe, premium-grade supplement for their well-being.
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"It’s rare to find pet products that feel this intentional. Everything from the packaging to the soft tones felt like it belonged in our home."
Sophia J. – Portland, OR -
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"Shopping here reminded me why I love spoiling my pup. There's a calmness and care behind the selection that really shows."
Daniel W. – Chicago, IL -
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"Whisker & Co. isn’t just a pet store—it feels like a lifestyle choice. Even my friends noticed how pretty the accessories are."
Ava K. – Los Angeles, CA
FAQ
How long does shipping take?
Most orders are processed within 3–5 business days.
Once shipped, estimated delivery times are:
- USA: 3–8 business days
- Rest of the world: 3–12 business days
You’ll receive a tracking link by email as soon as your order ships.
Please note: Shipping may take longer during holidays, promotions, or due to customs delays.
Can I return or exchange an item if it doesn’t fit?
Yes! We accept returns and exchanges within 30 days of delivery, as long as the item is unused, in its original condition, and in the original packaging.
Please note:
Pet food, treats, supplements, and other edible products follow separate safety and freshness standards.
These items cannot be returned once opened or if the packaging has been compromised.
For full details, please see our Returns & Refund Policy or contact us anytime.
Please note that functional issues after delivery may be handled under the manufacturer’s warranty policy.
What if my item stops working after delivery?
For product malfunctions after delivery, warranty and technical support are handled directly by the manufacturer.
If the issue occurs within the initial return period, please contact us and we will assist you accordingly.
If you have difficulty reaching the manufacturer, feel free to let us know.
Can I change or cancel my order after placing it?
Orders are processed quickly to ensure fast delivery.
Once an order has been processed, it cannot be changed or canceled.
If you need to request a cancellation, please contact us within 30 minutes of placing your order.
Cancellation requests made within this window may be subject to a transaction fee.