Musher's Secret is an invisible boot for dogs, made of dense, barrier wax that forms a breathable bond with your dog's paws. Developed in Canada for use with sledding dogs; it provides tenacious protection even in the most extreme conditions. The semi-permeable shield is absorbed into the paws, allowing perspiration to escape through the toes. Aids in protecting your dogs paws from salt and chemicals, ice build-up, snowballing, sand, sand-burn, hot pavement, and rough terrain. Don't forget the human factor Use Musher's Secret on your cheeks and hands to prevent windburn. How often should I use Musher's Secret? It depends on the activity level of your dog. Mushers will "walk off" in about a week. In snowy weather, be sure to spread Mushers up in between the pads to prevent snowballing. Is it ok if my dog licks his paws after I apply Mushers? Absolutely, dogs like the taste, and ingredients are all 100% natural waxes. Is Musher's Secret just for the winter? Definitely not. Mushers protects from hot pavement and sand as well as any irritants your pet may walk through.