This is my favorite part of the XanGo phenomenon. You see as a PhD in Clinical Biochemistry, I refuse to accept products without the research to back them up. I mean real hard core scientific studies and not some wishy washy test that has no relevance to the human condition. The XanGo mangosteen xanthones research is extensive and studied by PhD's, MD's and others from around the world. But, don't take my word for it. Read the summaries of just a few XanGo mangosteen xanthones research articles below. You be the judge. Xanthones Research from Around the World Demonstrate the Potent Antioxidant Power of the Mangosteen Fruit in XanGo! I've reviewed these selections of mangosteen xanthones research articles for you and condensed the main conclusions in easy to read format without much technical jargon, yet keeping the integrity of the medical findings intact. Bear in mind this is just a sampling of xanthones research. Natives of Asia used the mangosteen fruit for hundreds of years to heal a variety of medical sicknesses and ailments. They had no clue of the nature of the active ingredients in their concoctions of this miraculous fruit. Now, with the extensive mangosteen xanthones research done worldwide, we now know why those poultices and potions were so effective in treating so many medical sicknesses and ailments and endured the test of centuries. Narace D. Seudeal, Ph.D. 1) Antiproliferation, antioxidation and induction of apoptosis by Garcinia mangostana (mangosteen) on SKBR3 human breast cancer cell line. J Ethnopharmacol. 2004 Jan;90(1):161-6. Moongkarndi P, Kosem N, Kaslungka S, Luanratana O, Pongpan N, Neungton N.Department of Microbiology, Faculty of Pharmacy, Mahidol University, Sri Ayudthaya Road, Rajdhevee, Bangkok 10400, Thailand. pypmk@mahidol.ac.th These investigators found that an extract from the pericarp of the mangosteen fruit (major component in XanGo) inhibited the growth of breast cancer cells. They also showed that the extract had potent antioxidant and cancer cell death properties. They concluded that the extract from the pericarp of the mangosteen fruit has potential for chemoprevention. 2) Induction of apoptosis by xanthones from mangosteen in human leukemia cell lines. Matsumoto K, Akao Y, Kobayashi E, Ohguchi K, Ito T, Tanaka T, Iinuma M, Nozawa Y. Gifu International Institute of Biotechnology, 1-1 Naka-Fudogaoka, Kakamigahara, Japan.