Hoof supplements saved my horse. You have to give them for weeks before you really notice a big difference, but wow, after 3-6 months, WHAT a difference! Give good hoof supplements and use Rain Maker or vegetable oil on dry hooves...not wet feet...dry them first. Put shoes on for a few months if you're really having problems. You can turn it around. Start with nutrition and protect the hoof from damage, then use the oil. DO NOT use motor oil; it's full of toxins. This is so crazy! It reminds me of a neighbor who used to tell me to put WD-40 on my joints. He's not a doctor (or Einstein), just a goof ball. I feel sorry for his animals...and kids. At least use products made for animals.