Butterbur (Petasites hybridus) supports healthy blood flow to the brain and healthy neurological function. Butterbur has shown promise in trials examining its effect on migraine pain. 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.
Butterbur is considered an antispasmodic by the German Commission E. It is used to provide nutritive support for normal smooth muscle tissue function. Butterbur may also help maintain balanced seasonal immune responses.