This seems to work our little girl seems much more settled when we have to leave her at home alone , the only problem it effects me quite badly it gives me a very bad headache which I don’t suffer from normally. We can’t leave it on all the time which is recommended so just put it on a couple of hours before we leave home. There’s very little smell from it so don’t understand why it effects me so badly my husband has no problem with it but would recommend trying this if you have a anxious pet