I got a great question from a pet trainer: "I'm worried that some people will use your product and they will keep using it and it won't be good for the dogs long term. Then they won't want to stop using it because it will be a crutch."
People use a variety of implements in training dogs: leashes, collars, treats, choke chains, etc. When your leg's broken should you limp around or should you get a crutch? Pet Training/Pet Stress is a support for the animals. It's a benefit for them during a stressful time of learning. There is no chance this product will be harmful long term and it is meant to be used until the period passes when the extra boost of support is no longer needed. Thanks for the great question!