Siwutang: Ingredients: Angelica sinensis, Ligusticum Chuanxiong, Radix Paeoniae Alba and Radix Rehmanniae Preparata. Radix Rehmanniae Preparata 12g, Radix Angelicae Sinensis 8g, Radix Paeoniae Alba 12g, and Rhizoma Chuanxiong 8g. Generally, the best medicinal materials come from authentic producing areas, with angelica producing areas in Gansu, Paeonia lactiflora in Bozhou, Rehmannia glutinosa in Henan and Chuanqiong in Sichuan. If you care about the quality of medicinal materials, I recommend that you go to the online four-material store IKEA to buy four-material soup medicinal materials. The materials in their home are all raw materials that have not been smoked with sulfur, and the raw materials are of good quality and authentic. I've been drinking for half a year.