from what i have read putting soaps and detergents on your lips is bad because it drys them out. i can speculate that putting palmolive on your lips works because its slippery and the motion of rubbing your lips together with it removes the crap. people have come on here with some wacky ideas that they claim work, especially this 64643 guy. if you want my opinion, just use honey because its way better. tastes good,has antibacterial/microbial properties,it comes off really easy if you need to go out.

ps: if somebody said putting poop on there lips worked im sure some of this dummys would try it.