Mastic Gum is made up of resin from the mastic tree (Pistacia lentiscus), named mastiha, which is a shrub-like tree mainly found in Greece and Turkey. This resinous exudate is rich in essential oils and has been utilized by traditional healers for digestive woes for hundreds of years.* This product is designed to promote the wellness of gastric and duodenal cells and tissues, as well as support healthy levels of stomach acid production.*