Chios mastiha contributes to a healthy gastrointestinal system, when 1g per day is consumed. General information: Active ingredient: natural Chios Mastiha Resin (Pistacia Lentiscus var. Chia). Indications: Chios Mastiha contributes to eradication of Helico-bacter pylori (the causative agent in the creation of ulcers), reliefs from heartburn and digestive problems in general. Contra-indications: Have not been reported. Use during Pregnancy / Lactation: No data available. Interaction with drugs or substances: No data available. Dosage: Adults, 2-4 capsules daily, with water or juice, 30 minutes before your meal. Ideally consume 3 capsules daily, 1 before each meal. Consult your doctor or pharmacist. Undesirable effects: There were no adverse effects at doses up to five grams a day for period up to 6 months. Higher dose has not been used in clinical studies.