This is a practitioner grade product. One should know how and what to dispense GZFLW for. This product is not for retail sale on the internet, and should only be dispensed from practitioner to patient. By buying this product you acknowledge that you are a practitioner or an enrolled student in Chinese medicine. We are only interested in selling this product to practitioners of Chinese medicine, and not to other form of license holders. For now, this is an honor based system. We will check whether you are licensed or in school, but we hope to not resort to more drastic measures such as forms and signatures. Since this is a practitioner only product, you can charge what you want for it, as this product and its price will not be able to be seen by anyone but practitioners.