― I bought some pieces of Shiseido black mask to be re-sold. Actually peel-off type mask is not my favorite, but I was curious to try this one since I heard many good reviews about it. ∙ This mud-like mask promises to remove blackheads in just 30 minutes. It is even proclaimed as a very popular blackhead remover mask! Each pack contains 12g and can be used for 3-4 times if you use for nose area only. But you still can apply for the whole face. ∙ INSTRUCTIONS ∙ Take some on [...].