 From rodeo athletes to weekend trail buddies, most horses have ulcers. Painful flare-ups can happen any time. Zestera from Pro Earth Animal Health can help. Zestera is an apple-flavored all-natural liquid supplement that reduces the acidity in your horse's stomach. Ulcers can heal, and new ulcers are less likely to form. Learn more about Zestera at ProEarthAnimalHealth.com or call 800-254-0179. Pro Earth Animal Health, the natural alternative for animals.