I bought this mask when it first came out based solely on the fact that it was a peel off mask. It looks like black tar and is very thick. It took two times to get the perfect amount because if you use too much it takes forever to dry and too little and it doesn't peel off well. Once you get it right though it's great because you can feel it tightening on your skin and when you pull it off you can see some of the impurities it pulled out of your skin. It makes your skin look brighter and soft. I think some people believe it's like a pore strip for your face but mostly it makes your skin look more fresh instead of working like a blackhead/impurity remover.
I love this mask. I picked it up at Sephora although pricey it will run you about $38 dollars depending on sales. I don't use it, but maybe once a week or every two weeks. It makes your skin glow and makes it youthful looking. It pulls out impurities and is kind of a pain to peel off, but if you can stand biore strips then you can stand this it's a little less harsher peeling off than a biore strip.
Before purchasing this product, i read some of the reviews and most of them weren't really good but i bought it anyways. I'm pretty happy that i bought it because it left my skin feeling very light and smooth. A lot of the reviews stated that you needed a thick layer to cover your face and it was hard to peel off. I only did a thin layer, just enough to cover my face, left it on for about 20-25 minutes then peeled it off. it was a bit hard because the product really sticks to your skin but i did the 'pinching' technique and it came off really easy afterwards! finish it off with moisturizer and your face will feel fresh, new, and airy! I think the reason why there were so many bad reviews was because most didn't know how to apply/remove the product properly.