FORMULATED FOR CATS: Lysine, a vital amino acid, plays a crucial role in bolstering your cat's immune system and promoting healthy respiratory functions. Lysine may help support the body's defenses to fight feline ailments such as sneezing, watery eyes, runny nose, and conjunctivitis. IMMUNE SYSTEM | EYE | RESPIRATORY HEALTH: Lysine may help manage & relieve these symptoms commonly experienced by cats. Lysine is thought to help and manage symptoms of FHV and respiratory issues such as competing replication biomechanism against L-arginine. VETERINARIAN RECOMMENDED: for feline conditions responsive to lysine. Made for cats of all ages, kittens, and seniors alike. PURE & CLEAN - Made from pure, bioactive lysine, without unnecessary fillers. Concentrated and easy to serve. Size: 120g