Extract that can be very soothing to skin but also potentially sensitizing if a specific constituent of the feverfew plant known as parthenolide (technically, sesquiterpene lactone) is present. If the parthenolide is removed from feverfew, the ingredient is not a problem for skin and may actually be beneficial because parthenolide-free feverfew has potent skin-soothing properties and can help to diminish redness.
If a skincare product contains feverfew, you must contact the company to confirm that the feverfew in their products is parthenolide-free. Note: All Paula's Choice products that contain feverfew are parthenolide-free.
References for this information:
Journal of Dermatological Sciences, December 2013, pages 304-31
Pharmacognosy Review, January-June 2011, pages 103-110
Archives of Dermatologic Research, February 2008, pages 69-80
About the Experts
Paula Begoun is the best-selling author of 20 books about skincare and makeup. She is known worldwide as The Cosmetics Cop and creator of Paula’s Choice Skincare. Paula’s expertise has led to hundreds of appearances on national and international radio, print, and television including:
The Paula's Choice Research Team is dedicated to busting beauty myths and providing expert advice that solves your skincare frustrations so you can have the best skin of your life!