My dog would shake like a leaf even on the shortest of journeys but this has stopped all shaking. Even on a 2 hour journey. No travel sickness either because he wasn’t anxious. I sprayed his travel carrier with several sprays 20 mins before the journey so the smell would go, and off we went. The smell isn’t great but its not as bad as other reviews say. I will be trying it on his harness and lead to see if it calms him on walks when he sees strangers. Fantastic product.