So... to keep your lips crust-free, try exfoliating and then using a lip treatment. My favorite lip treatment that I use everyday is Philosophy's Kiss of Hope. I just discovered Fresh's Sugar Lip Polish and Lip Treatment, which is a great alternative for me to my go-to lip conditioning choice. The Lip Polish is great for exfoliating, which I recommend pre-lipstick (gross) or pre-lipstain (woohoo!).