Shop / Tomlyn / Tomlyn L-Lysine Gel for Kittens Tomlyn $21.99 Tomlyn L-Lysine Gel for Kittens Sorry, this product is currently out of stock. Information Ingredients Veterinarian formulated gel that helps support a healthy immune system, normal eye function and health. With maple flavoring, your cat or kitten will love this great tasting gel. ACTIVE INGREDIENTS PER ½ TEASPOON (2.7 GRAMS): L-Lysine Hydrochloride....500 mg INACTIVE INGREDIENTS: Citric Acid, Edetate Disodium, Maple Flavor, Potassium Sorbate, Purified Water, Riboflavin 5'-Sodium Phosphate, Sodium Benzoate, Sodium Carboxymethyl- cellulose, Sucralose. Customers also liked Customer Reviews