We have a big German shepherd that has always had terrible paws. She was always tearing them open and could never develop good callouses. We spent a fortune on different shoes that never really worked right, and she hated. Then our vet suggested mushers secret, I tried it and was amazed!!! We have not had any more issues! Zero! After 2 years of bandaging torn paws!! Her pads have even toughened up. We just make sure to rub musher’s secret on before any big runs or hikes and that’s it. It even made me write my first online review ever! I highly recommend and will be buying for the lifetime of my dog I’m sure! Just wish I was able to buy it somewhere local, we have a hard time finding it…