We used this originally for our Australian Shepherd, who suffers from fear aggression and anxiety, but we decided to try it on our Border Collie/Great Pyrenees cross who developed severe allergic itching. It not only helped settle our Aussie (along with her Babble Ball) when we were at work, but it helped our Pyc with her itching somewhat until her allergy tests came back and the vaccine was manufactured. It also helps our older Border Collie sleep at night while she is on Prednisone for an immune disorder. I think for the price, it's worth a try if you need to calm a dog on a temporary or occasional basis. I hope it will also help my Aussie when the next thunder storm comes along.