ASSURANCE YOU CAN TRUST 

All ingredients are sourced from GMP approved US suppliers. Pyrrolizidine Alkaloids (PAs) removed from Butterbur Root extract via non-chemical ion exchange, removing nothing from the extract except PAs and 2 to 3% of its minerals ensuring the highest quality product with less than 1 ppm of PAs. Manufactured in our GMP certified facility in El Monte, California.