: Look for extracts standardized to contain at least 15% petasins and isopetasins for maximum effectiveness.
: Good for artisanal or small-batch products like Woolly Butterbur Root Tinctures. Buying Considerations where to buy butterbur
These retailers often curate products with specific certifications, such as being "PA-free" (Pyrrolizidine Alkaloids removed). : Look for extracts standardized to contain at
Butterbur is primarily sold as a dietary supplement in the form of capsules, tinctures, or powders. You can find it through major online retailers, specialized health stores, and some local pharmacies. Top Online Retailers specialized health stores