Gastro D Complex is comprised of seven synergistic ingredients, including Mastic Gum, which helps to protect the gastric mucosa. Safflower tops may help to provide additional support against H. Pylori infestation, especially for blood type O nonsecretors. Bentonite Clay assists in attracting and soaking up environmental toxins. The inner bark rind of Slipper Elm protects the GI tract from excess acidity. Finally, Bismuth helps protect the lining of the stomach from stomach acid.