Chios mastiha oil (Mastic Oil), an essential oil produced exclusively in Mastichochoria (“the mastic villages”) of Chios, is a product known since Greek Antiquity. It is extracted from natural mastic after distillation (the yield varies depending on the quality of mastic yield between 1% -3%) and has a white or yellowish color, as well as an intense aroma. Since 1994 Mastiha Oil has been certified as a product of Protected Designation of Origin PDO