Aside from the weirdness factor of this product heating up the second it
touches your skin, it does a great job and is a total bargin (you get 6
masks for under $5). It does its work in a minute, and washes off nicely,
leaving skin feeling super smooth and soft and very clean. I think I'm
going to use it once a week for the indefinite future -- I haven't found
any other mask that seems to clean pores so well (although it seems more
like a scrub than a mask).