Ua de Gato Cat’s claw, also known as the “life-giving vine of Peru,” saventaro, or ua de gato, is a thick woody vine indigenous to the Amazon rain forest and other tropical areas of South and Central America. It has been revered by native herbalists of the region for over 2000 years and is valued for its many uses. Modern scientific research has determined that its characteristic alkaloids are responsible for its biological activities. Natural color variation may occur in this product.