There probably won't be many free K-Beauty TONYMOLY sheet masks remaining for much longer. In order to get yours, create a free account then come back to this page and click “Request for sample.” A confirmation message should appear on the side of the screen.
I had to take a 12 question survey on my skin tone and hair type for them to match me with a freebie. Then you'll get to enter your bio and mailing address. They require you to upload a profile picture, but you can use a computer generated face from This Person Does Not Exist.