Mushers Secret is a dense, barrier wax that forms a breathable bond with your dogs paws. Developed in Canada for use with sledding dogs, it provides tenacious protection even in the most extreme conditions. Safe and natural. Made from a blend of several food grade waxes, then refined according to special formulations, Mushers Secret is the safe, non-toxic way to protect your dogs paws. The semi-permeable shield is absorbed into the paws, allowing perspiration to escape through the toes. Does not contain any soy oil, flaxseed oil, tea tree oil, nut oils, lanolin, or petroleum products.