Unfortunately, this product did not work for my dog, in fact it made it worse. From the time we adopted Sam, at age of four, he came to us with skin issues and it has been a journey... We almost lost him with a very bad case of demodex mange, but after a year of treatment with Ivermectin, he was free of it, but he has never been 100% free of skin issues. Sam is 9 yrs old and we don't stop looking for ways to improve and give him the best quality of life possible. We have used probiotic Miracle before, which helped some, but after reading the reviews on on Dogzimes 911 I decided to switch to it hoping that it could be even more effective than Miracle. After a few weeks of using it, my dog's skin broke up really bad, the itching increased, he started to have very painful abscesses on his back legs/paws, lesions around the outside of his bottom mouth, hard looking tumors appeared on his bottom, loss of hair. My poor little guy was a mess and feeling miserable. We visited our Vet twice for blood tests and scraping of the skin for demodex, which came out negative. The only thing left to do was to suspend Dogzimes 911, which we did in combination with 5 weeks of Lime Sulfur dips to help with the dermatosis of the skin. All symptoms described started to disappear and our guy is back to normal. I am glad Dogzimes has helped other pups, but unfortunately for us it didn't.