Im sorry I honestly don't know it doesn't say but I will try to do some research to find out its been a long time since I was selling. Just trying to clear out old inventory
I did some searching and it appears that most of the newer stuff has hypoallergenic posts. Unfortunately I can't find anything that says specifically that ones from 2007 are and the packaging does not specify either. Therefore I cannot say one way or the other and wouldn't want to put anyone at risk of a reaction so to be safe i thinks its best to assume they are not.