What if you leave the pack on for a long time?

In fact, face masks contain many cosmetic ingredients in the form of thin liquid.

Therefore, if you leave it on for more than 20 minutes, excessive moisture can penetrate the skin, potentially causing irritation and disrupting the skin's oil-moisture balance. If you fall asleep with the mask on, it initially creates a sealing effect that prevents moisture evaporation, but as time passes, it causes even the moisture already present in the skin to evaporate, making it even drier.

Therefore, it is recommended not to use functional masks, such as those for whitening or anti-wrinkle care, for more than 20 minutes.