It is great as a purifying mask only not to leave on face too long. The instruction said wait until it dries then peel off. I would recommend just left on face until semi-dry. Otherwise,it hurts to peel off once it is totally dry. I did not anything coming out of mask though. But my face feels really clean afterwards. My combination skin handles this no problem not so sure about sensitive skin. It also has very strong gasoline smell. Not a pleasant mask to use but it does the job.