First, the broken lipstick remaining in the tube is heated. Note that the heating mentioned here is not heated by fire, but is heated by a hair dryer or steam, and the solid lipstick is melted.

This softens the residual lipstick paste and provides adhesion that allows the broken lipstick to effectively bond back into the tube. This step is a very crucial step.

After heating, the upper part of the lipstick is gently pressed against the heated and softened lipstick, and the cotton stick is used to wipe off the protruding portion of the joint due to the pressing, so that the two pastes are better bonded together.

Daren reminds you MM here, pay attention not to use brute force when pressing, but use a cotton pad to gently turn the broken lipstick into the tube, the power should be controlled.

Lipstick pen