Made from the bark and leaves of the witch hazel plant, the astringent has a variety of applications, from cleaning and disinfecting to being used as a liniment or for hair re-growth, witch hazel should be a staple of every stable. Late for a show and your horse has a mud, urine, manure or other stain on his otherwise pristine coat? Use witch hazel to get it off. Did your mare get a scrape that you would hate to leave a scar? Use witch hazel to promote hair re-growth.