Butterbur (Petasites hybridus) is a native shrub of Eorope, North America, and Asia that has been used by herbalists for centuries. Modern research has demonstrated that Butterbur supports healthy blood flow to the brain and healthy neurological function. Petasins, the active constituents in Butterbur, have been shown to play a role in minimizing the frequency and severity of neurological discomfort triggered by bright lights and stress that occasionally occurs in healthy individuals. Feverfew has historically been used internally for migraines and headaches. **Now(R) Butterbur is free of undesirable Pyrrolizidine Alkaloids (PA's), so it is safe to use regularly.
