This is a test of commonsense. Complete the next sentence:

How to heal sore lips
Look for lip products with petroleum.
The most popular name-brand petrolatum product is vaseline, though off-brand products are often just as effective. Though there were concerns about the safety of some petrolatum products on the european market, those issues have been resolved, and petrolatum products score well in safety ratings.
Petrolatum creates a protective seal over the skin that locks in moisture to prevent lips from drying out, reducing soreness. Use dimethicone products on your lips.