My horse has very thin soles and suffers badly with concussion. I have been reading the threads about changing to a barefoot diet as I believe this will help him grow a thicker sole (front shoes are coming off in about 6 weeks time as we only just managed to get them on this time - he couldn't stand on one foot to be clenched up). I have seen references to Equimins Meta Balance and another one called Pro Hoof which I believe may help.