Hi everyone, according to my experience, if u hav dry or crack lips, u can try applying petroleum jelly (Vaseline in this case) b4 u go to bed, the next day while u brush ur teeth, u actually can wash it away too. After that, u can feel ur lips  softer n tender    Then, u just need to apply any lipbalm or lip gloss b4 u go out for the day.

Even i went holidays at countries which temperature is at negative degrees, i did the same n the effect is just awesome!!