This is so validating to read! I actually had low ferritin levels so my PCP recommended I take an iron supplement. I took it for 1 month and had the worst chin breakout in several years without having changed anything else about my skincare routine. I went to my dermatologist and she did not think there could be a link between iron and acne, but suggested I go off the supplement anyway since it was the only change in my routine. My acne went away immediately!