This is a contentious issue which Sabrina and I were discussing a few months back, it seems that some people almost become "addicted" to lip balms (I know I have one for each handbag). Being nerdy med students, we wondered if it was psychological or if possibly the old wives tales about Vaseline drying out your lips were true. Here's what my google search (highly reputable source...high level evidence base I assure you) found.
