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(Peak Performance) Performance and racehorses can often become irritable, nervous and have unpredictable behavior, particularly when placed under stress at competition and heavy training regimens. This tends to be worse when they receive high-grain, low-roughage diets and when they are confined to stables throughout the day. Ex-Stress is an all-natural, herb-free formula to help your horse handle the stress of travel and competition. Since sugar can make a nervous horse even more tense, Ex-Stress is completely sugar-free. You’ll find only concentrated levels of B vitamins and magnesium in this calming product. Ex-Stress succeeds where other products have failed.