Pet Naturals L-Lysine for Cats is your all-in-one immune booster. Keep your purr-fect kitty healthy with these immune-boosting L-Lysine chews. L-lysine, an essential amino acid for cats, supports their immune, eye and respiratory health. These yummy chicken liver-flavored chews help your feline friend get back to their lovable, playful self in no time! Each fish-shaped chew delivers 250 mg (.25 g) of pure L-lysine to help support your cat or kitten's immune health and function. Grain-free with no wheat or corn and free of artificial colors and flavors, plus veterinarian-formulated and manufactured in the USA with the best ingredients from around the globe. Ideal for kittens through seniors; perfect for multi-cat households, boarding situations and times of enhanced stress; and loved by pet parents seeking everyday immune support.