Composure chews for cats are a calming supplement designed to promote relaxation during stressful situations. Examples: Your cat is headed to the vet. You had a new baby. You are having guests over for the holidays. You heard there’s about to be a thunderstorm. Whenever your cat is stressed, calming chews offer positive support. Three main ingredients work together to support relaxation without affecting your cat’s energy levels or personality. No herbals used.