Wow this is a great idea. You should post more information on how to send you the samples, what kind of bags to make sure the samples arent tainted, etc.
Fortunately (but unfortunately for this) I dont have flakes on my lips anymore (unless I stopped applying moisturizer, which I dont want to do). But I would be willing to swab my lips and send the swab.
I hope people contact you and are willing to do this. This could be very helpful people!!!!!!!