What is it?
Parthenolide is the one of the major chemicals called sesquiterpene lactone that cause allergic reactions to the following plants:
  • Feverfew
  • Tansy
  • Several other Compositae plants
  • Magnoliaceae species

How do I avoid?
You should avoid contact with this substance. Care should be taken when handling these plants.  Also, skin and hair care products that contain extracts from these plants may also contain this substance and should be avoided. Avoidance requires reading labels, package inserts, Material Safety Data Sheets (MSDS) and on occasion, direct communication with the manufacturer.

  • Certain skin and hair care products containing botanical extracts
  • Herbal teas
  • Natural medicine for relief and migraines

Other names for Parthenolide:
  • Composite plants

Potential cross-reacting/co-reacting substances:
  • Sesquiterpene lactone mix

How safe is it?

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