I had a very sensitive cat, (sadly he has recently and suddenly passed away) He was stressed by neighbours cat. I gave him 2 of these a day and they seemed to work for him. He was much calmer and happier. They didn't calm him enough to take him to the vet though.
My anxious longhaired cat loves these treats, and on three a day he is much calmer. A happier cat, and a relieved owner.
Received order on time. Cats seem to like the treats so hoping will notice a calming difference soon.