Barberry (Berberis vulgaris) is a bush native to Europe, Asia, the Middle East, and North Africa that’s been naturalized to many regions of North America. The berries of the barberry are traditionally used to make jams and jellies. But the herb also has a long history as a folk remedy for digestive disorders, including constipation, diarrhea, dyspepsia, heartburn, and loss of appetite. It was thought to increase the flow bile, which is why it was used for liver and gallbladder problems. Topically it was recommended to treat skin conditions like eczema, psoriasis, and acne, as well as minor wounds