I am not usually someone who buys things like this. But Bear is a 7 year old shepherd mix and over the past year his separation anxiety got really bad. I was losing sleep over it. A neighbor mentioned CalmiPet worked for her dog too, so I ordered it. After about a week, Bear was actually settling into his bed on his own, something he almost never did before. He is a calmer version of himself now. We both finally sleep through the night. That alone is worth every penny. It really works.