Butterbur is a shrub that grows in Europe and parts of Asia and North America, typically in wet, marshy ground. The name, butterbur, is attributed to the traditional use of its large leaves to wrap butter in warm weather. Butterbur has historically been used for a variety of health issues such as pain, headache, anxiety, cough, fever, and gastrointestinal and urinary tract conditions. It has also been used topically to improve wound healing.
Butterbur extract has a very scientific research in USA and some European countries, and the botanic source is Petasites hybridus, please check the following data,
– Product name: Butterbur extract
– Latin name: Petasites hybridus
– Part of used: Root
– Active Ingredient: Sesquiterpenes
– Specification: 15%
– PA: NMT5ppm
While in China, there is no butterber extract standard to comply, and no Standard solution in China for us to complied with, thus usually we only offer the sample for our client to test, and they give us feedback. One more thing, in China the butterbur extract is extracted from Petasites japonicus (Siebold & Zucc.) Maxim, and the active ingredients Petasins (petasin & isopetasin), we consider those are simiar to Sesquiterpenes.