- Home >
- Dog Suppliesdogsupplies>
- Food Supplementsstooleatprev>
- Lysine Productslysinecat> Felisyl Immune System Support
Felisyl® is a supplement that contains the amino acid L-Lysine for use in cats and kittens for conditions responsive to L-Lysine. L-Lysine is an essential amino acid, which means that your cat's body needs it, but can't produce it, so this supplement is a perfect choice to provide that necessity.
L-Lysine HCL Immune System Support for Cats helps keep your cat healthy by supporting the immune system naturally so that it can function normally and produce antibodies. Felisyl L-Lysine HCL Immune System Support for Cats also helps maintain healthy tissue, supports respiratory health, and may even help with your cat's vision. The L-Lysine is in palatable poultry, and the flavored fish base was making these granules easy to give to your cat, sprinkle over or mix with food.
![]() |
Immune Support for Cats
Fuel your pet with the supplements they need to remain healthy and boost their immune system with cat health supplements that add much-needed nutrients and amino acids to continue being active. |
![]() |
L-Lysine
L-Lysine is an essential amino acid that your pet?s body doesn?t produce, so this supplement is the perfect aid that helps support your pet?s immune system so that it can function normally and produce antibodies. L-Lysine also helps maintain healthy tissue supports respiratory health. |
![]() |
Pet Health Supplement
A healthy immune system and eye health are essential for cats of any age. Ensure your furry friend remains active with healthy vision with these pet health supplements that help support normal inflammatory response and help support cat-eye health. |
Note: Short Dated Sale! Product is Best Used By 11/21. All Sales Are Final. Buy 3 6oz Bags with Discount Automatically Applied at Checkout.
Felisyl® is a supplement that contains the amino acid L-Lysine for use in cats and kittens for conditions responsive to L-Lysine. L-Lysine is an essential amino acid, which means that your cat's body needs it, but can't produce it, so this supplement is a perfect choice to provide that necessity.
L-Lysine HCL Immune System Support for Cats helps keep your cat healthy by supporting the immune system naturally so that it can function normally and produce antibodies. Felisyl L-Lysine HCL Immune System Support for Cats also helps maintain healthy tissue, supports respiratory health, and may even help with your cat's vision. The L-Lysine is in palatable poultry, and the flavored fish base was making these granules easy to give to your cat, sprinkle over or mix with food.
![]() |
Immune Support for Cats
Fuel your pet with the supplements they need to remain healthy and boost their immune system with cat health supplements that add much-needed nutrients and amino acids to continue being active. |
![]() |
L-Lysine
L-Lysine is an essential amino acid that your pet?s body doesn?t produce, so this supplement is the perfect aid that helps support your pet?s immune system so that it can function normally and produce antibodies. L-Lysine also helps maintain healthy tissue supports respiratory health. |
![]() |
Pet Health Supplement
A healthy immune system and eye health are essential for cats of any age. Ensure your furry friend remains active with healthy vision with these pet health supplements that help support normal inflammatory response and help support cat-eye health. |
Note: Short Dated Sale! Product is Best Used By 11/21. All Sales Are Final. Buy 3 6oz Bags with Discount Automatically Applied at Checkout.
Felisyl® is a supplement that contains the amino acid L-Lysine for use in cats and kittens for conditions responsive to L-Lysine. L-Lysine is an essential amino acid, which means that your cat's body needs it, but can't produce it, so this supplement is a perfect choice to provide that necessity.
L-Lysine HCL Immune System Support for Cats helps keep your cat healthy by supporting the immune system naturally so that it can function normally and produce antibodies. Felisyl L-Lysine HCL Immune System Support for Cats also helps maintain healthy tissue, supports respiratory health, and may even help with your cat's vision. The L-Lysine is in palatable poultry, and the flavored fish base was making these granules easy to give to your cat, sprinkle over or mix with food.
![]() |
Immune Support for Cats
Fuel your pet with the supplements they need to remain healthy and boost their immune system with cat health supplements that add much-needed nutrients and amino acids to continue being active. |
![]() |
L-Lysine
L-Lysine is an essential amino acid that your pet?s body doesn?t produce, so this supplement is the perfect aid that helps support your pet?s immune system so that it can function normally and produce antibodies. L-Lysine also helps maintain healthy tissue supports respiratory health. |
![]() |
Pet Health Supplement
A healthy immune system and eye health are essential for cats of any age. Ensure your furry friend remains active with healthy vision with these pet health supplements that help support normal inflammatory response and help support cat-eye health. |
Note: Short Dated Sale! Product is Best Used By 11/21. All Sales Are Final. Buy 3 6oz Bags with Discount Automatically Applied at Checkout.
Felisyl® is a soft chew supplement that contains the amino acid L-Lysine for use in cats and kittens for conditions responsive to L-Lysine. L-Lysine is an essential amino acid, which means that your pet's body needs it, but can't produce it, so this supplement is a perfect choice to provide that necessity.
L-Lysine HCL Immune System Support for Cats helps keep your cat healthy by supporting the immune system naturally so that it can function normally and produce antibodies. Felisyl L-Lysine HCL Immune System Support Soft Chews for Cats also helps maintain healthy tissue, supports respiratory health, and may even help with your cat's vision. The L-Lysine is in a chicken liver flavored soft chew making it easy to give to your cat.
For Use In: Cats
![]() |
Immune Support for Cats
Fuel your pet with the supplements they need to remain healthy and boost their immune system with cat health supplements that add much-needed nutrients and amino acids to continue being active. |
![]() |
L-Lysine
L-Lysine is an essential amino acid that your pet?s body doesn?t produce, so this supplement is the perfect aid that helps support your pet?s immune system so that it can function normally and produce antibodies. L-Lysine also helps maintain healthy tissue supports respiratory health. |
![]() |
Pet Health Supplement
A healthy immune system and eye health are essential for cats of any age. Ensure your furry friend remains active with healthy vision with these pet health supplements that help support normal inflammatory response and help support cat-eye health. |
Note: Short Dated Sale! Product is Best Used By 11/21. All Sales Are Final. Buy 3 6oz Bags with Discount Automatically Applied at Checkout.
Felisyl® is a soft chew supplement that contains the amino acid L-Lysine for use in cats and kittens for conditions responsive to L-Lysine. L-Lysine is an essential amino acid, which means that your pet's body needs it, but can't produce it, so this supplement is a perfect choice to provide that necessity.
L-Lysine HCL Immune System Support for Cats helps keep your cat healthy by supporting the immune system naturally so that it can function normally and produce antibodies. Felisyl L-Lysine HCL Immune System Support Soft Chews for Cats also helps maintain healthy tissue, supports respiratory health, and may even help with your cat's vision. The L-Lysine is in a chicken liver flavored soft chew making it easy to give to your cat.
For Use In: Cats
![]() |
Immune Support for Cats
Fuel your pet with the supplements they need to remain healthy and boost their immune system with cat health supplements that add much-needed nutrients and amino acids to continue being active. |
![]() |
L-Lysine
L-Lysine is an essential amino acid that your pet?s body doesn?t produce, so this supplement is the perfect aid that helps support your pet?s immune system so that it can function normally and produce antibodies. L-Lysine also helps maintain healthy tissue supports respiratory health. |
![]() |
Pet Health Supplement
A healthy immune system and eye health are essential for cats of any age. Ensure your furry friend remains active with healthy vision with these pet health supplements that help support normal inflammatory response and help support cat-eye health. |
Note: Short Dated Sale! Product is Best Used By 11/21. All Sales Are Final. Buy 3 6oz Bags with Discount Automatically Applied at Checkout.
Felisyl® is a soft chew supplement that contains the amino acid L-Lysine for use in cats and kittens for conditions responsive to L-Lysine. L-Lysine is an essential amino acid, which means that your pet's body needs it, but can't produce it, so this supplement is a perfect choice to provide that necessity.
L-Lysine HCL Immune System Support for Cats helps keep your cat healthy by supporting the immune system naturally so that it can function normally and produce antibodies. Felisyl L-Lysine HCL Immune System Support Soft Chews for Cats also helps maintain healthy tissue, supports respiratory health, and may even help with your cat's vision. The L-Lysine is in a chicken liver flavored soft chew making it easy to give to your cat.
For Use In: Cats
![]() |
Immune Support for Cats
Fuel your pet with the supplements they need to remain healthy and boost their immune system with cat health supplements that add much-needed nutrients and amino acids to continue being active. |
![]() |
L-Lysine
L-Lysine is an essential amino acid that your pet?s body doesn?t produce, so this supplement is the perfect aid that helps support your pet?s immune system so that it can function normally and produce antibodies. L-Lysine also helps maintain healthy tissue supports respiratory health. |
![]() |
Pet Health Supplement
A healthy immune system and eye health are essential for cats of any age. Ensure your furry friend remains active with healthy vision with these pet health supplements that help support normal inflammatory response and help support cat-eye health. |
Note: Short Dated Sale! Product is Best Used By 11/21. All Sales Are Final. Buy 3 6oz Bags with Discount Automatically Applied at Checkout.
This veterinarian formulated L-Lysine gel is recommended to help the immune system with amino acid support in a salmon flavor cats love. Felisyl® also helps support respiratory health and maintain normal eye function and health. With 500 mg of L-Lysine per ½ teaspoon.
For Use In: Cats
![]() |
Immune Support for Cats
Fuel your pet with the supplements they need to remain healthy and boost their immune system with cat health supplements that add much-needed nutrients and amino acids to continue being active. |
![]() |
L-Lysine
L-Lysine is an essential amino acid that your pet?s body doesn?t produce, so this supplement is the perfect aid that helps support your pet?s immune system so that it can function normally and produce antibodies. L-Lysine also helps maintain healthy tissue supports respiratory health. |
![]() |
Pet Health Supplement
A healthy immune system and eye health are essential for cats of any age. Ensure your furry friend remains active with healthy vision with these pet health supplements that help support normal inflammatory response and help support cat-eye health. |
Note: Short Dated Sale! Product is Best Used By 11/21. All Sales Are Final. Buy 3 6oz Bags with Discount Automatically Applied at Checkout.
This veterinarian formulated L-Lysine gel is recommended to help the immune system with amino acid support in a salmon flavor cats love. Felisyl® also helps support respiratory health and maintain normal eye function and health. With 500 mg of L-Lysine per ½ teaspoon.
For Use In: Cats
![]() |
Immune Support for Cats
Fuel your pet with the supplements they need to remain healthy and boost their immune system with cat health supplements that add much-needed nutrients and amino acids to continue being active. |
![]() |
L-Lysine
L-Lysine is an essential amino acid that your pet?s body doesn?t produce, so this supplement is the perfect aid that helps support your pet?s immune system so that it can function normally and produce antibodies. L-Lysine also helps maintain healthy tissue supports respiratory health. |
![]() |
Pet Health Supplement
A healthy immune system and eye health are essential for cats of any age. Ensure your furry friend remains active with healthy vision with these pet health supplements that help support normal inflammatory response and help support cat-eye health. |
Note: Short Dated Sale! Product is Best Used By 11/21. All Sales Are Final. Buy 3 6oz Bags with Discount Automatically Applied at Checkout.
This veterinarian formulated L-Lysine gel is recommended to help the immune system with amino acid support in a salmon flavor cats love. Felisyl® also helps support respiratory health and maintain normal eye function and health. With 500 mg of L-Lysine per ½ teaspoon.
For Use In: Cats
![]() |
Immune Support for Cats
Fuel your pet with the supplements they need to remain healthy and boost their immune system with cat health supplements that add much-needed nutrients and amino acids to continue being active. |
![]() |
L-Lysine
L-Lysine is an essential amino acid that your pet?s body doesn?t produce, so this supplement is the perfect aid that helps support your pet?s immune system so that it can function normally and produce antibodies. L-Lysine also helps maintain healthy tissue supports respiratory health. |
![]() |
Pet Health Supplement
A healthy immune system and eye health are essential for cats of any age. Ensure your furry friend remains active with healthy vision with these pet health supplements that help support normal inflammatory response and help support cat-eye health. |
Note: Short Dated Sale! Product is Best Used By 11/21. All Sales Are Final. Buy 3 6oz Bags with Discount Automatically Applied at Checkout.
Description
Felisyl® is a supplement that contains the amino acid L-Lysine for use in cats and kittens for conditions responsive to L-Lysine. L-Lysine is an essential amino acid, which means that your cat’s body needs it, but can’t produce it, so this supplement is a perfect choice to provide that necessity.
L-Lysine HCL Immune System Support for Cats helps keep your cat healthy by supporting the immune system naturally so that it can function normally and produce antibodies. Felisyl L-Lysine HCL Immune System Support for Cats also helps maintain healthy tissue, supports respiratory health, and may even help with your cat’s vision. The L-Lysine is in palatable poultry, and the flavored fish base was making these granules easy to give to your cat, sprinkle over or mix with food.
Ingredients
chicken liver flavor, starch, L-lysine, water, soy lecithin, canola oil, brewer's yeast, glycerin, oat flour, barley flour, rye flour, oat meal, calcium sulfate, maltodextrin, sodium alginate, sobric acid, propionic acid (a preservative), mixed tocopherol blend (a preservative).
Guaranteed Analysis per Chew
|
Administration:
|
Warnings: For animal use only.
Store in a cool dry place.
Keep out of the reach of children and animals. In case of accidental overdose, contact a health professional immediately.
Felisyl® is a manufactured in the USA in FDA and USDA approved facilities following current Good Manufacturing Practice (GMP) GUidelines.