I was just thinking about this

I tried it and all I got was a very dry pair of lips, infact I'm not sure but I think my top lip may have gotten worse, seems once a week I have a dry patch that appears between the triangle and the left side of the top lip (This patch is similar to the triangle but it comes off a lot easier and stays off for a week)

I might try it again but only on the bottom lip next time since I've got nothing to lose on the bottom lip :|