Sirona Nutrition Butterbur Complex with Feverfew

What the brand says

European herbalists have been using Butterbur for decades and scientific studies have demonstrated that Petasins‚ the active constituents in Butterbur‚ can support healthy blood flow to the brain and promote normal neurological function. In this way‚ Butterbur may help to maintain head comfort in healthy individuals. Contains: 75mg Butterbur (Petasites Hybridus) 400mg Feverfew Flower Extract (.2% Parthenolides=.76mg)