As early as the Xia and Shang dynasties, people knew how to wash their faces to maintain personal hygiene, and the word “foam” in the oracle bone inscription means to wash the face. Every morning after waking up and before going to bed at night we will wash our faces, which has long been known as the contemporary daily cleaning activities must be carried out. However, in the beauty circle, but a wave of “not wash your face” skin care trend, let us explore the next.