Herb Pharm Suma Extract comes from the root of Pfaffia paniculata plants which are Custom Wildcrafted in their wild native habitat in the Upper Amazon region of Brazil. To assure optimal extraction of Suma's bioactive compounds, the roots are hand-harvested only when fully mature, are carefully shade-dried, and are then shipped directly to our laboratory and thoroughly extracted. Herb Pharm Suma is never fumigated or irradiated. Single herb extracts are exactly what the name implies – a solitary herb, typically in a base of certified organic alcohol. All of Herb Pharm single herbal extracts are prepared according to precise Good Manufacturing Practices and with individualized formulations or processes, which enable each herb to be extracted according to its own unique physical and biochemical characteristics. This attention to detail produces a finished extract which optimally represents the herb from which it was made. Herb Pharm extracts are very rich in the aroma, taste and bioactive compounds of the original herbs themselves. Herb Pharm uses pharmaceutical-grade, certified organic alcohol to make over 90% of our liquid herbal extracts.