Acne. It happens to the best of us, even for adults who are well past their pubescent years and to celebrities whose skin always seems to look flawless. But no one, regardless of age, fame or stature, ...

When pores get clogged with oil and dead skin a blemish forms; when the pore is exposed to air a blackhead forms. Inversely, when the pore is closed and restricted from air exposure, a whitehead forms ...