Before using: be sure to wash the hot bath or exercise after sweating, ensure that the pores completely open and keep the face moist.
-using: the product on the skin slowly ba and forth, do not stay too long in the same place, so as not to damage the skin. You can su out the oil, whiteheads, and relatively shallow blaheads. If the bla head is deeper, it is best to use together with the Blahead Derived . If suction does not come out, it does not matter, do not use too long each time, with a period of time, a week or so, more deep bla will be out, and will not leave scars.
-After using: can be used with some tightening water or cold water to shrink the pores to do follow-up maintenance.