How to give a candy flavored kiss<br>Exfoliate your lips to make them soft. You don't want your lips hard or chapped and dry. Use an exfoliating lip scrub or a toothbrush dipped in petroleum jelly to remove any dead, flaky skin and leave your lips smooth and soft.

Based on that paragraph can we conclude that this sentence is true?
The petroleum jelly will moisturize your lips to make them smooth and soft.