Petadolex Purple Butterbur Extract by Integrative Therapeutics

The patented method of extraction for Petadolex® ensures the valuable petasites compounds are captured, while leaving out toxic levels of inherent compounds such as pyrrolizidine alkaloids. This product is tested for pyrrolizidine alkaloids to guarantee safety, made possible by using this patented process (U.S. Patent #6,551,626)..