Baby oil gel. But please remember to wipe it off as soon as the horse is done showing. One of the training barns on here has a how to on their website - a series of articles - I learned a lot from them. Hopefully they will chime in or someone who knows the training farm I am talking about.
Minimor, where is the best place to get that? Sounds good to have sunscreen just incase. And for those horses with pink skin do you guys do it different?