Can egg whites be used as a face mask?
Generally speaking, egg white can be used as a facial mask. The detailed explanation is as follows:

Egg white is rich in protein. When applied to the face, these proteins can form a protective film on the skin surface. This film reduces water evaporation from the skin surface, thus providing moisturizing effects and making the skin look hydrated. At the same time, it can temporarily tighten the skin, making the skin appear firmer and providing a certain anti-wrinkle effect.
In addition, egg white also contains vitamins and minerals such as vitamin B2, which helps maintain the health of skin and mucous membranes and may aid in preventing skin inflammation. Moreover, zinc promotes wound healing and plays a positive role in improving the skin's self-repair capability.
Before applying egg white to your face, it is recommended to perform a small patch test to check for any adverse reactions, so as to avoid allergic reactions caused by blind usage. Also, it is recommended to clean your face before applying the mask, while carefully avoiding the sensitive areas around the eyes and lips, which will enhance the effectiveness of this method.