Our company strictly enforce our raw herb supplier not to sulfer fumigate (sulfer dioxide gas) the herbs that we use for manufacture. Especially for herbs that are commonly sulfer-fumigated to prevent micro contamination, such as Gou Ji, Shan Yao, Jin Yin Hua, Ju Hua, Fu Ling etc..., our raw herb sourcing team would periodically inspect the cultivation site and analyze the samples to ensure they are fresh and not sulfur fumigated. For detail information, please click here take a look on the investigation report by our raw herb sourcing team on Sun Ten "Gou Ji" cultivation site.( http://www.suntenglobal.com/news/index.php?main_id=2)
