Support your cat’s everyday health with Under the Weather’s L-lysine Chews. These supplements contain a generous amount of the amino acid, L-lysine. Amino acids are important in the production of the antibodies cats need to maintain normal immune system response. Beneficial in helping to manage upper respiratory issues such as conjunctivitis, and other symptoms of feline herpes. Veterinarian-formulated and manufactured in Vermont, these chews are made free of corn, artificial flavors and dyes, and have a great whitefish taste your kitty will love!