Hi, . This is something I never knew myself, and I didn't even think to check products like deodorant. May I ask which brand you use? I looked at my own one when I saw your comment and it didn't have a warning label on mine (I use Women Mitchum.) I think it's a good shout to look at the warning labels of certain health & beauty products you use; I defo will start, too.
Thanks, I hope you're having a kind day,
Sabad