Brand from South Korea: Etude House. Etude House Baking Powder Pore Cleansing Foam is a multi deep cleansing foam that precisely takes care of pore-clogging impurities and dead skin cells with fine baking powder, while dense and rich foam thoroughly cleanses makeup residues. Removes blackheads and improve on enlarged pores. How to use: 1. Form a desired amount of cleanser by rubbing in wet hands. 2. Massage onto face and rinse thoroughly with warm water.