My, not very toy oriented, Pomsky Miki really enjoyed his AromaDog toy. It's one of the few he has chewed to tatters. I don't know if it calmed him but he was very engaged with it and seemed to prefer it over all his other toys. That's a win for me. I'd give it 5 stars but it didn't last all that long and my little guy doesn't chew very hard. However, at the moderate price I'm buying another for him.