MI allergies in Europe dropped 50% between 2015 and 2017 after the EU ban, which is good news. But here's the catch: MI didn't disappear—it just moved. Cosmetics had less MI, so now people are getting allergic reactions from household products like cleaners and rinse-off items instead.

Researchers tested 8,157 patients across 14 European clinics over 2016-2017 to see who reacted to MI, then tracked what products were actually causing their allergic contact dermatitis.

Funding not disclosed in abstract