Fixing a broken lipstick is a simple task that can be done in a few minutes. All you need is a lighter, a match, or a candle.
The first step is to hold the broken lipstick over the flame for a few seconds. This will melt the edges of the lipstick and make them easier to smooth together. Once the edges are melted, gently press them together and hold for a few seconds until they cool and fuse back together.