I have the same issues and have been told it's the bisbuth and possibly their brushes. I'm currently going through the neverending trial and error sampling of other MMU, which is driving me crazy. Just yesterday I shot off an email to BE (because I really do like everything about it except the itchies and redness) advising them of the many people having adverse reactions to the bismuth and/or brushes and is there anything that could be done about it. Of course they didn't acknowledge the problem, instead they suggested using a layer of mineral veil before applying foundation. They also suggested using a heavier layer of moisturizer. Somehow, I have my doubts! :satisfied: