I'm making some cookies for a hairdresser to give out to her clients that are going to prom that evening. I've made some red blow dryers-- Now I'm worried that the girls will totally freak if they think the red has stained their teeth. I think I need to clue in the hairdresser as to what to tell the girls as to how quickly the red will go away... Any ideas?

Well I've not been told of nor seen any problems w/red staining teeth.
I do know it can be a problem is it get on their clothes

About all I can think of is to tell them not eat like pigs! heheh - just kidding

I would just mention it to the hairdresser in case any of the girls get worried. I don't think it should be a problem.