I have a police K9 working dog that developed a limp. I was told surgery (torn ACL), muscle strain, and “we just don’t know!” My K9 spins like a Tasmanian Devil and evidently developed small tears in the pad of his foot! Someone recommended this product and it was a godsend! No surgery required! I give my K9 a foot rub with this stuff every day before shift, and he can track and do narcotics work without any limp or visual signs of pain!