NOW: Butterbur With Feverfew

Butterbur (Petasites hybridus) is a native shrub of Europe, North America, and Asia that has been used by the herbalists for centuries. Modern scientific studies have suggested that Butterbur supports healthy blood flow to the brain and healthy neurological function.* Petasins, the active constituents in Butterbur, have been surmised 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.* In addition, Butterbur may help to maintain balanced seasonal immune system function.* NOW Butterbur is free of harmful levels of Pyrrolizidine Alkaloids (PA's), so it is safe to use regularly.