What is Berberine? Purisaki Patches Purisaki Berberine Patch Purisaki Patches Reviews  is a naturally occurring compound found in several medicinal plants, including Berberis aristata , Coptis chinensis , and Hydrastis canadensis . It has been used for centuries in traditional systems of medicine such as Ayurveda and Chinese herbal medicine to treat infections, digestive issues, and...