Review (5/5): Worked fantastic!!
Bought this for our family facial night. Three teenagers ( two boys and a girl, 14, 15, & 16) and myself did the mask. The four of us mostly emptied a bottle, so I'd guess that it is good for 5 or so uses total. It took longer than instructed to dry, and even after 30 minutes we had spots that had never dried.
The pain from the peeling was much like pulling off a bandaid, although my sons seemed to struggle with it more - maybe because of incoming facial hair?
The results are fantastic, we all apparently had a lot more blackheads than we thought we did. My face now feels super smooth and soft, and I have a nice glow. We used a thin later of rose water toner afterwards to sooth the redness. We would use again!