Balsam of Peru Contact Dermatitis

What is Balsam of Peru?

Balsam of Peru (BOP) is a naturally occurring sticky substance that is harvested by wounding the Myroxylon pereirae tree, found in Central America. It has an odor similar to cinnamon and vanilla, and is renowned for its healing effect on open wounds. It is used in the standard patch test series, as a screening chemical for contact allergy to fragrances.   Notably, it cross-reacts with a number of synthetic fragrances found in perfumes, lotions, cleaning products, etc.  And, as it is a natural substance (containing hundreds of components), there are a number of plant-based foods that also contain varying amounts of these same chemicals.  BOP has been associated with both allergic contact dermatitis and systemic allergic response.

Frequently Asked Questions

Test Your Knowledge!

Video: Balsam of Peru Contact Dermatitis

Other Resources

Allergen Focus: Myroxylon Peruviae

This article discusses modern usages of BOP, including 3 major applications in pharmaceutical, fragrance, and flavoring industries

Sources: Where BOP Is Found

With so many components, avoiding potential reactors may seem daunting. This list can help direct your research and expose unexpected sources of BOP.

Diet: Foods that may cross-react with BOP

While not everyone responds to a low BOP diet, some people may find that changes in diet help their ACD.

Video: Patch Testing

So how do you determine if you are allergic to Balsam of Peru? Learn more about patch testing and how it can help with ACD management.

Report your reaction!

Learn how to report a reaction, to whom it should be reported, and why this is so important.

C.A.M.P.

Hosted by the American å Society, this program creates customized product lists for those with allergies.

Support Group

Facebook group for people with allergies to BOP and fragrance.