DURASOLE is formulated to harden the equine exfoliating sole and frog. It is extremely effective in enhancing the protective capabilities of those structures and does not affect the proximal sensitive sole or frog. It works by swelling and thickening the cell membranes of the exfoliating sole, not by coating the sole with impermeable oils. 

Durasole does not contain copper napthenate or any essential oils. This product can be used for extended periods of time on chronically thin-soled horses without fear of drying out the foot as it does not compromise the moisture balance of the foot when used as directed. Durasole creates a tough, natural, pad between your horse's sensitive sole and the world's often hostile environment.