This supplement is ideal when circumstances reduce your horse’s resistance to disease and the immune system needs a boost. This supplement obviously contains several vitamins (Vitamin A, vitamin E, vitamin D, vitamin C, etc.) to get the horse back to its normal level. It also contains several plant extracts that are known to increase resistance to disease, such as Echinacea purpurea and dandelion (Taraxacum officinale). It would not be complete without magnesium, which has been added in the form of citrate. Another very important ingredient is zinc (in the form of zinc glycinate). Zinc stimulates the production of immune cells. Finally, this mixture also contains prebiotics, which nourish useful gut bacteria in order to restore resistance.