Bencao Index https://bencaoindex.com/ https://bencaoindex.com/herbs/ku-fan/ Free to use and republish with visible attribution and a link back to the source page. The catalogue is a reference work and is knowingly incomplete; nothing in it is medical advice. <a href="https://bencaoindex.com/herbs/ku-fan/">Bencao Index</a> kū fán 枯矾 Alumen Dehydratum dried alum