Meeptard
Neither. We dont use Carmex, really. I found out that it actually breaks down you lip muscles ever so slightly each time you put it on and that helped to destroy that range and tone I (as a brass player) have worked hard to build up.
uh..i think that's just as an excuse. granted, i don't play a brass instrument, but i still have the biggest range in my entire brand and i use carmex all the time. if it's destroying your range, it's because you're not working hard enough in the first place, and you would have lost it anyway. like you said, even if it DOES break down muscle, it does it EVER SO SLIGHTLY. definitely not enough to override how much you can build up by excercising your muscles.