Recommended time for mask packs

Did you know that you shouldn't leave a face mask on for too long?

I thought it would be better to leave the mask on until it dried, but I heard that if you leave it on for too long, it actually draws moisture out as it dries.

They say it is better for your skin to remove the mask and let the remaining essence absorb, even if it hasn't dried yet.

The recommended maximum time is said to be 15 to 20 minutes.

Everyone, please use it on time!