The Keratex Hoof Hardener is a patented product designed to strengthen the horn within hours of the first application. It prevents premature shoe loss and stops cracks and splits in the hoof wall. This unique formulation rebuilds the molecular structure of weakened hoof horn without compromising the natural functions of the hoof capsule. Ideal for use on both shod and unshod horses, it can also be applied to the soles of horses prone to bruising.