Humans and horses have different Ph leveled skin. Human shampoo maycause aome irritation to a horses skin and I have hear human shampoo is harder to wash out of a horses coat and it builds up which is what can cause irritation.
It really is your own personal decision wether or not you use human shampoo, I just thought I'd throw in some information :)
I personally choose horse shampoos and conditioners :)
(although apparently human hair detanglers work great on manes and tails too, because they don't stay directly on the skin they would be less likely to aggrivate the skin) Posted via Mobile Device