Lots of climbers use liquid chalk because it's less messy than using powdered or bagged-chalk. It comes out as a thick milky goo which you rub on your hands, th

Lots of climbers use liquid chalk because it's less messy than using powdered or bagged-chalk. It comes out as a thick milky goo which you rub on your hands, the alcohol evaporates off and you're left with a coating of chalk. I've had mixed experiences with it, it lasts longer, but that only seems to be the case if your hands don't sweat. I gave up and went back to powder because I need to reapply often.