- The essence for pore care- Clean pore controller The second step of skin care for controlling oily skin Pore Control Powder Serum controls sebum & provides moisture closely to the wide & loosed pores of skin with the clean & light texture. It makes the skin texture moist & can be used to oily or troubled skin. First it removes the old keratin on the pores & the skin surface to elaborate a smooth skin & then it removes sebum & the waste matters without skin stimulation so that you can feel the excellent cleansing effect. After that by the cooling texture it refreshes your skin & gives an instant shrinking effect. Finally it forms a sebum controlling film & improves elasticity by Psidium Guajava Fruit Extract. This refreshing & moisturizing essence supplies moisture to oily skin which is in short of moisture & prevents the greasiness of skin caused by sebum.