Calm your dog in stressful situations by spraying Sentry Calming spray in crates or in their bed to create a more relaxing environment. This pheromone mist modifies the behaviour and physiology brought on by stress. Testing of this product has revealed that pheromones can reduce a pets elevated heart rate. So next time when Ruff is off to the vet or groomer, don’t forget the spray. It will help him feel safe and secure.