We may shampoo our hair every day, but your horse doesn’t need such frequent bathing. In fact, washing him too often will strip his coat of natural oils, which soften the hair and impart a healthy-looking shine. Of course, you want to bathe your horse thoroughly before a show or event, but otherwise, you don’t need to use shampoo every time you hose him down. Always be sure to rinse thoroughly when you do use shampoo. A light gray color or “gummy” feeling at the base of the tailbone is a dead giveaway that the horse wasn’t rinsed well enough.