Life Extension, Migra-Eeze, 60 SoftgelsProduct Description Migra eeze is formulation with standardized extract of butterbur root to provide support for head comfort. Based on the current body of evidence, experts are recommending an extract from the herb butterbur (petasites hybridus) to maintain head cavity comfort. In fact, clinical trials in both germany and the united states suggest butterbur extract may support head comfort. Pre clinical research shows that butterburs major active