If you look at most of the ingredients in your lip
glosses/chapsticks/or any other lip
product that you are allergic
to, you can almost pinpoint what is causing your bad reactions. It's different for everyone, so I can't provide an answer for you guys, but I can tell you that I am allergic to Chapstick, Carmex, MAC lipglasses/glosses soft lips, and other random free chapsticks that I had gotten as gifts, ie rosebud's.