also if you want your horses coat more shined (at shows im guessin?) then you can you normal human gloss (but only sprays mainly) I've found this works a treat and fast and easy to do and if you buy in bulk you get a discount anywayz I hope I've some how helped you?
On my mare I use a product called ''Heathly hair care'' it works great! Everyone at the barn always asks me what I am feeding her because her coat looks so healthy. You can get it at about any horse store.