I've tried several ways of calming my Tess, Xanax being one of them. They did not help. She still paced, cried, shook. I bought this oil, as my sister swears by them for herself, and decided to give it a try. Last night I rubbed it into the insides of both her ears a couple hours before the storm hit, and went to bed. When the thunder hit, I fully expected to see her in my room pacing, or hear her downstairs. I did not. No sound came from her and she did not come upstairs to wake us up. Not even with the loudest boom. I'm going to give this a couple more tries, just to be sure, but her behavior last night was unusual to say the least. Thank you for this wonderful product. It also smells good.