Place the petroleum jelly in an microwave-safe dish.
Take a bright red lipstick and use a knife to cut off a couple of shavings. As the red is so bright, you will only need a tiny bit of lipstick to make a nice rosy colour.
Get your containers ready, you'll need to work quick in a minute. Place the petroleum jelly in the microwave and melt down, this should take around 3 minutes, but keep checking on it to see if it's working.