I know many people purchase used e/s, f/l and pigments, however after hearing a friend of mine tell me she gets eye infections repeatedly (she gets them every couple of month) I have totally turned off sharing makeup or purchasing used makeup. I just don't want to take the chance of contacting anything. It really isn't worth it imo. Yes I understand proper disinfecting technique will just about kill all the bacteria and germs. But there's still that 0.1% that I don't want to risk.