L-Lysine Pro

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Supports immune system and respiratory health in cats of all ages.

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L-Lysine Pro supports immune system function, eye and respiratory health in cats. As an important component of many proteins, L-lysine supports antibody, hormone and enzyme production. It also promotes healthy growth and development by supporting the production of collagen. L-lysine and the amino acid L-arginine compete for the same receptors in the body. L-Lysine competes with L-arginine, an amino acid responsible for upper respiratory issues. This formula also features DMG which has been shown to significantly increase immune response. These tasty chicken liver flavored-chews are made with hydrolyzed protein for cats with dietary sensitivities.

Additional information

Weight 0.18 lbs
Dimensions 5.75 × 5 × 1 in




Package Size

120 chews


Active Ingredients (Per 2 Chews):
L-Lysine 250 mg
N,N-Dimethylglycine HCI (DMG) 50 mg

Inactive Ingredients: Arabic Gum, Brewers Yeast, Calcium Sulfate, Canola Oil, Chicken Liver Flavor, Citric Acid, Citrus Pectin, Glycerin, Maltodextrin, Mixed Tocopherols, Oat Flour, Propionic Acid, Rosemary Extract, Rye Flour, Silicon Dioxide, Sodium Alginate, Sorbic Acid, Soy Lecithin, Vegetable Oil, Water.


Adult Cat: Give 1 to 2 chews, twice daily

Kittens: Give 1 chew, twice daily

For cats that are finicky, break or cut chews in half.


Recommended for feline patients. Consult your veterinarian before use.

For animal use only. Safe use in pregnant animals or animals intended for breeding has not been proven. If an animal’s condition worsens or does not improve, stop product administration and consult your veterinarian.

Not for human consumption. Keep out of reach of children and other animals. In case of accidental overdose, contact a health professional immediately.

Do not use if tamper-evident seal is broken or missing. Store at room temperature out of direct sunlight.