الرؤوس السوداء والبيضاء

They remove the surface plug of the ones they catch, but they don't stop new ones forming and can irritate skin with repeated use. A BHA used consistently addresses the cause rather than pulling out one instance of it.

Most people see visible change within two to four weeks of consistent BHA use — pores themselves don't shrink, but clearing what's inside them makes them look noticeably tighter.

Yes — that's the combination that covers both angles. Just don't layer a leave-on BHA serum and a clay mask on the same day if your skin is new to exfoliation.