I got the Mario Badescu Skin Care Drying Mask at the same time as I got the drying cream. According to the product guide it is sulfur- based, reduces oiliness, lifts away impurities and dries up breakouts.
I have been using the mask 2 or 3 times per week, before bed.
I leave it on for 15 - 30 minutes.
It feels really grainy and healthy, like a mud mask, and washes off ...