Facial cleanser is actually facial cleanser. Its function is simple, that is, to clean the face. The main components are water and surfactant, and other components are added.
Can it whiten and moisturize? Sorry, it's almost impossible, because all cleansing products are washed off immediately after use, and it is impossible to invade under the skin barrier. If so, our faces would have rotted long ago. So the role of facial cleanser is to clean. If you find yourself turning white after using it, it is estimated that your face was not cleaned before.
The choice of facial cleanser is very important and needs to be chosen according to your own situation. For sensitive skin, choose amino acid or grain fermentation, because it is naturally soft, but this soft face can't be washed clean, especially the big oily skin, which will still feel sticky and uncomfortable after washing.
So you can choose cleaner skin, but don't always use anything to scrub and exfoliate, which will destroy the skin barrier. Friends in super-large oil fields can use the kind that deeply cleans and exfoliates once a week, but it is a bit nonsense to expect facial cleanser to whiten, protect and moisturize.