What is it?
Tanacetum vulgare (Tansy) is an aromatic weed frequently found growing in uncultivated areas, such as along roadsides and rivers across both Europe and North America. It is also used as a botanical extract in various commercial products.

How can I avoid it?
Skin contact with Tansy is usually required for it to cause a rash. Discontinuation of exposure to products containing Tansy should result in improvement and/or resolution of your dermatitis. By law, all products made in the U.S. for topical use have the ingredients listed either on the product package or the box that contains it, so check the labeling of your skin care products for this ingredient. If there is not enough information, ask your retailer or contact the company directly. At work, request a Safety Data Sheet (SDS) to help identify potential sources of exposure.

Uses:
  • Naturopathic “folk” medicine
    • Herbal remedy
    • Vermifuge (agent that is destructive to worms)
  • Skin and hair care/Cosmetics
    • Perfumes
    • Moisturizers/serums
    • Shampoos
    • Sun balms
    • Shaving products
  • Flavoring
    • Seasoning in foods
    • Teas
  • Insect repellant/Insecticide
  • Traditional dyes
Contains:
  • Sesquiterpene lactone arbusculin-A
  • Tanacetin
Other names for tanacetum vulgare:
  • Bitter buttons
  • Parsley fern
  • Tansy
  • Cow bitter
  • Mugwort
  • Golden-buttons
Potential cross-reacting/co-reacting substances:
  • Parthenolide
  • Other plants within the Compositae family

MC4999-36(Dec2024)

How safe is it?

Hang tight. We're thinking.