Did you know Glutathione is the body's master antioxidant and is vital to good health? Back to Top. Mangosteen Fruit (Garcinia Mangostana). Health Benefits. Mangosteen fruit (Garcinia mangostana) is a unique pear-shaped, sweet, juicy and tangy tropical fruit that has a deep reddish-purple colored exocarp (rind). Many tropical plants have interesting biological activities with potential therapeutic applications. Garcinia mangostana Linn. (GML) belongs to the family of.