Solaray, Mastic Gum Extract, 500 mg, 45 CapsProduct Description Dietary Supplement 35% Alpha and Masticonic Acids Product Benefits Mastic Gum Extract 500 mg. is a natural resin from the Pistacia lentiscus tree of Greece, has been used traditionally by mediterranean cultures to support gastrointestinal health. Ingredients Supplement Facts Servings Size: 2 Vegetarian Capsules? Amount Per Serving %DV Total Carbohydrate 1? g <1%? Dietary Fiber 1? g 4%? Mastic?(Pistacia lentiscus)? (gum extract)