Cat's Claw or Uña de Gato, is a woody vine that comes to us from the exotic highlands and jungles of the Amazon Rain Forest of Peru. Considered a sacred botanical by the locals Indians, this vine grows wild in the highlands of the Peruvian Amazon in South America. Ashaninca Indians have used both, the bark and roots of the vine for generations on end to treat numerous health problems, targeting the immune and digestive systems in particular. Peruvian tribal folklore describes decoctions or teas made from Uncaria Tomentosa vine and their extraordinary ability to treat tumours, soothe arthritis, ease gastric upsets and boosts immune system. There are many different species of Cat's Claw, being the one known to have the most benefits for improving the immune system the Uncaria Tomentosa Willd DC. Cat's Claw may be one of the Amazon's most impressive health promoting gifts. Evidence strongly suggests that the alkaloid and phytochemicals content of Cat's Claw may distinguish it as a wonder herb of the 21st century.