Keratex hoof hardener unlike other hardeners the keratex hoof hardener formula is patented and includes a unique flexibility agent as well as a hardening agent making this the perfect product to protect your horse from brittle cracked soft or weak hooves soft sensitive or thin soles repeated shoe loss transition to barefoot hoof damage keratex hoof hardener is scientifically proven to strengthen and protect shod and unshod hooves to restore soundness after sensitive soles and t