Please check out this great article by Andy Ellis with regards to the common issues around granule use in clinic.
The new GMP (Good Manufacturing Practice) guidelines for dietary supplements are beginning to be implemented. In that Chinese herbs continue to be categorized as dietary supplements they are subject to the GMP requirements. One of these requirements states that where extract ingredients are used extract ratios be clearly stated on product labels. Unfortunately, there are no clear guidelines on how to calculate these ratios. The aim of this article is to exam-ine extract ratio expressions and discuss what they do and do not express