I've seen Barley's behavior change in the first session already.
Bark Busters dealt with Aggression, Barking, Hyperactivity, Jumping up, Pulling
Trainer note from Ruth :
Barley is a mixed breed dog who has had a few homes already. He learned not to trust people at some point along the way. His anxiety, along with feeling like he had to be the pack leader, made him very protective of his family. His body language showed how stressed he was. When his owner started to speak dog, he visibly relaxed. Aggression is not something that is cured overnight. His owners will need to be consistent with him in order for him to believe they will continue to be good pack leaders. With Bark Busters' lifetime guarantee, they will have help whenever they need it.