Protexin Veterinary Cystophan - Urinary Health and Bladder Support for Cats with N-acetyl D-glucosamine, Hyaluronic Acid and L-tryptophan - 30 Capsules, FV2221Urinary health in cats can be affected by interactions between the bladder and nervous system. External influences, such as environment, can also affect your cats state of mind Protexin Veterinary Cystophan supports the protective glycosaminoglycan (GAG) layer of the bladder with N acetyl D glucosamine a building block for GAGs. Cystophan for cats also contains hyaluronic acid, which forms part of the GAG lining. With L tryptophan, which converts to