Many of my Eskimo's acquantances are on The Missing Link. I tried him on it 3 times - working up to the recommended dose over the recommended 2 week period. It most definitely helped with his itchy skin, but at the full dose amount, his tummy became upset. I think it has to do with the vitamin mix. But it sure helped the itchies. His friends - long and short haired breeds all do well on it.