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  6. 6-PACK Felisyl Immune System Support Granules (21 oz)

6-PACK Felisyl Immune System Support Granules (21 oz)

Availability: In Stock
Was: $70.99$53.89You Save: $17.10!(24%)

NASC Certified

This product has met all of the stringent quality and safety standards set by the NASC.

The NASC (National Animal Supplement Council) is a non-profit self regulatory group that set specific guidelines to which manufactures must strictly adhere.

This seal is meant to minimize risk by providing an easy way of communicating to consumers that a product and its manufacturer meet particular standards of quality, customer safety and service.

Those products that have the seal for NASC Quality and Safety standards have been strictly audited and were determined as meeting the following criteria:

  • Consistent manufacturing quality control
  • A system for evaluating complaints and adverse events
  • Clear and accurate labels compliant with codes and restrictions for all forms of labeling


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 a palatable poultry and fish flavored base making these granules easy to give to your cat, just sprinkle over or mix with food.

For Use In: Cats


Guaranteed Analysis per (1 cc Scoop):
(All values are minimum quantities unless otherwise stated.)
Moisture (max) 1.1%
L-Lysine 78% (250 mg)
Ingredients: L-Lysine, Chicken Liver Powder, Fish By-Products, and Sugar.

Useful Information

Sprinkle measured amount over cat’s food and mix in. This product is intended for intermittent or supplemental feeding only.

Age of Cat Morning Evening
Under 6 months 1/2 Scoop 1/2 Scoop
Over 6 months 1 Scoop 1 Scoop

Customer Reviews

DISCLAIMER: The results described on the testimonials on this site, are the individual experiences and personal opinions of those who have purchased and used the products. These testimonials are not intended to make any claims that the products can be used to diagnose, treat, mitigate, cure or prevent any disease or medical condition.

Questions and Answers

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