Not many thoroughbred people use Keratex Hoof Hardener but this is an awesome product. It runs about 50 bucks for a bottle but I, personally, have watched quarter cracks heal in a matter of 10 days or so. Its great for dry hoofs that are brittle and bruised feet. An all around great product. Not crazy about the pad idea as it tends to trap too much moisture on the bottom of the foot. Generally all my horses I use Keratex on their feet about once or twice a week depending on the weather and daily plus if there is a problem. I learned the hard way, feet are EVERYTHING. You are sunk without a good blacksmith and even better groom.
The therapeutic heel pad has a hole in it allow the moisture to escape. Not many people are aware of the benefits of this pad but every blacksmith that has seen my shoeing compliments it.