The face mask we used is one that I got for my birthday (one of many gifts that you can check out in this blog post). It's the Body Shop Blue Corn 3-In-1 Deep Cleansing Mask which claims to "cleanse, exfoliate and purify with Community Trade Blue Corn powder", and looks like this:
As you can see, it's a fairly thick mud mask that has exfoliating particles in it. You apply it on to damp skin and it goes on super easily and smoothly.
It did "tingle" (verging on stinging) for the first five minutes but then settled down and we felt more comfortable. We kept it on for the maximum 15 minutes as recommended.
It was fairly difficult to take off (exfoliating as we washed), but manageable despite some contact lens drama from Kayleigh. When we had removed the last traces, however, our skin felt AMAZING. We both kept stroking our faces and telling each other how smooth it felt!