A great misconception in skincare is that pores can change size, depending on the formulas you use. This is not the case. What is true, however, is that the appearance of one's pores can alter dramatically, depending on whether they are clogged with oxidated oil and dead skin cells or not. Unclogging and deeply cleansing your face can minimize your pores' appearance, making them less visible by removing excess oil and the attention-getting dark gunk sitting within them.