What is the Maqui Berry? Posted on December 18, 2009February 4, 2010Author CAOHPosted in Anti-Aging, CAOH General Information, Maqui (Aristotelia chilensis), Recent Posts, Superfoods, Therapy Juices (Super Food Juices) Maqui Berry is a purple variety of berry found in the South American Region (Patagonia Region) of Chile and Argentina. The berry has been found to contain high levels of antioxidant properties. In fact it tops all others!