MASTICA CHIOSHelps relieve heartburn A health promoting gum resin derived from the Pistacia lentiscus tree Helps alleviate stomach pain and heartburn Relieves gastric and intestinal inflammation DETAILS Mastic gum is the gummy resin of the mastic tree Pistacia lentiscus, a relative of the pistachio tree. The mastic tree is found almost exclusively on the Greek island of Chios, the birthplace of Hippocrates, the traditional father of medicine. Mastic gum has