Optixcare L-Lysine Chews are soft, chicken-flavored treats built around L-lysine, an amino acid included to support feline eye and immune health. Each chew is made from a poultry-based formula with rice starch, glycerin and natural preservatives, giving it a pliable texture that most cats and kittens accept readily. The chews are meant to be offered daily, with adult cats typically given one to two chews and kittens a half to one chew, or as otherwise directed by a veterinarian. Consistent daily use is intended to help reduce the frequency and severity of feline herpes virus flare-ups over time. The chews come in a resealable pouch that helps keep the product fresh between feedings. No preparation, mixing or assembly is required before offering a chew. The pouch should be kept in a cool, dry location and stored out of reach of children and other pets.