Dr. Naylor s Hoof N Heel penetrates deeply to attack hoof & foot rot fouls and foot scald in sheep goats cattle and dairy cows. There is no discoloration hardening shrinkage or brittling of the hoof with Dr. Naylor s Hoof N Heel. With Dr. Naylor s Hoof N Heel you ll see a quick response and rapid loss of lameness. Dr. Naylor s Hoof N Heel is non-toxic and won t stain wool nor hair. No residues and no withholding with Hoof N Heel.