Supports Immune Function Nutritional Supplement Ancient Rainforest Treasure No GMO (Genetically Modified Organisms) Beneifts of Pau D'Arco - Supports Immune Function Wisdom of the Ancients blends the traditions of native wisdom and the standards of modern science in our line of flavorful, health-promoting teas from around the world. Wisdom of the Ancients promises only the finest herbs that are wildcrafted, family farmed or estate grown. We have abided by fair trade and fair wage principles for more than 25 years. Ancient Rainforest Treasure The Pau d'Arco tree that grows in many parts of South America was treasured by the ancient Guarani healers for its inner bark. This tribe from the rainforest of Paraguay discovered it strengthened the body's natural defenses when made into a tea. With over 100 species available. Wisdom of the Ancients chooses Pau d'Arco from Paraguay because laboratory tests show it to be four times more potent than species found in Brazil. Carefully harvested by hand and cured for 24 months, we bring the health promoting properties to the modern world.Wisdom Natural