Swanson, Butterbur Extract, 75 mg, 60 Capsules

Antioxidant Support 75 mg Per Capsule Standardized Herbal Supplement Popular Traditional Herb Free of Pyrrolizidine Alkaloids (PA) Provides 7 mg of the Sesquiterpene Petasin Per Serving Science-Backed Quality Since 1969 Fans of our butterbur will rejoice for this product, which replaces branded supplements with equally high quality at a much lower price. Many users asked us for a lower-cost alternative, and after much searching, we were able to find an extract similar in composition and equal in potency, which we feel confident will produce the results you've come to expect from Swanson brand supplements. Each capsule supplies 75 mg of butterbur extract standardized to a guaranteed 7 mg petasins and certified free of pyrrolizidine alkaloids (PAs).