1. Turn the stain part inside out, lay down a dried clean towel under the shirt with stain.
2. Spread a cleansing oil from out side.
3. Pat the stain with a toothbrush.
4. Repeat patting a few times.
(Since the lipstick stain falls off to the towel, you should change the towel to the clean one a few times. )
5. Wash it with water and stain falls off!