First, work from the inside! I love Farrier’s Formula! For moisture, esp during the summer, I swear by Effol’s Summer Hoof Gel– 3x a week. For showing ( and biweekly maint), I use TuffStuff- it doesn’t dry out the hoof like some other popular polishes! Two coats for a great shine! Most importantly, read the directions on anything you use! For example, the absorbine hoof polish says to remove with liniment (wuh?? Who actually does this???) and Keratex– is great when using it, and some horses really respond well…. But if you stop….the horn ‘channels’ that it strengthens are now without it, and you have hooves worse off than before. But, just my opinion.