Mastic, or masticha, or mastiha. In Greece we call it Mastiha (masticha). Whatever you call it, the fact remains that is full of miraculous and beneficial properties.Chios gum mastic (Mastiha) has a protected designation of origin. The natural gum mastic of Chios is recognized as a natural medicine (HPMC) also by the European Medicines Agency (ΕΜΑ).