Do you want to help your kitty look and feel their best everyday? Of course, you do! Help maintain your cat’s health with L-Lysine chews from Pet Naturals of Vermont. It's formulated with amino acid l-lysine to support immune system, eye and respiratory health. Increased stress may cause worsen respiratory problems. Changes to routine such as traveling or vet visits could lead to immune system challenges. But, L-Lysine supports your kitty's immune system function when it’s needed most!