What is Pau D'Arco? Pau D'Arco is a tree that grows in the Amazon rainforest and other tropical regions in South America. The bark from the Pau D'Arco plant contains special botanical compounds known as naphthoquinones, a well-known source of antioxidants. This herb has been cultivated for centuries in various wellness practices around the world. Supplementing with Pau D'Arco Traditionally, Pau D'Arco was used to make to make herbal tea and now is available in many supplements including capsules, pills, powder, liquid drops, and tinctures. Tinctures provide exceptional purity and potency and are easy to take daily. Looking for the best source of this tropical herb for your wellness routine? Horbaach Pau D'Arco At Horbaach, our gluten-free and vegetarian formula provides a super concentrated form of Pau D'Arco in one low-alcohol liquid extract. It's scientifically-designed to offer maximum support. Simply add to a small amount of water to enjoy the benefits of this unique bark extract!