I started using it at 13 weeks and now my pup is 5 months old... I bought it so that it would help with seperation anxiety while I was at work for 8 hours each day. Like the others have said, I don't know for sure if it works (b/c I'm not there to monitor his behavior) but temperment wise, Wall-E seems to be fine staying alone in his pen while I'm at work. He doesn't seem to have any noticable behavioral issues.. no chewing or ripping things apart when left alone. I say- its worth a shot, you never know! |