Will Falconer, DVM Moderator
Hi Groomer, this is beyond improbable, it is quite impossible! Anything injected into the animal's body is going to have its effect on the body. Any vet who suggests it could be shampooed away is, guess what, trying to sell more shampoo!
I appreciate you've invested in this product, and yeah, it probably causes no harm to anyone, but for a vet (working for the company, no less!) to claim something on the surface will keep animals safe from vaccinosis is utterly irresponsible. Causing people to think this works will add to the damage being done on a daily basis from the overuse of vaccines.