Use cornstarch as a facial mask, take "mung bean flour mask" as an example. The method is as follows:

Mix 3 teaspoons of mung bean powder with milk and apply evenly on the face. Mung bean powder facial mask is very cleansing. Apply it to your face 2-3 times a week at most. Do not do more, especially if your skin is very thin. After applying the mask on your face, spray some water for a while. A dry mask will not be effective. Be sure to wet the mask before taking it off. Never peel it off while dry, otherwise it will be very painful. When cleaning, when it is wet, you can first wipe off the excess paste with a paper towel, and then scrub it with a facial sponge, which will make it easier to clean. Once you start to use it, you should stop using it if you notice redness or swelling.