New! Keratex Hoof HardenerKeratex Hoof Hardener has a clever patented formulation, that makes the hoof both flexible & hard at the same time! It works by cross linking the keratins & proteins within the hooves, making the hooves stronger from the inside Keratex Hoof Hardener has a clever patented formulation, that makes the hoof both flexible & hard at the same time! It works by cross linking the keratins & proteins within the hooves, making the hooves stronger from the inside