Few topics attract more myths and marketing than pores. Products promise to "shrink", "open" and "close" them as if they were doors. Understanding what pores actually are — and are not — frees you from chasing impossible results and points you toward the things that genuinely help their appearance.
The honest starting point: your pore size is largely set, but their appearance can be improved.
Pores don’t open and close
Pores are openings in the skin; they do not have muscles and cannot open or close on command, nor does cold water or a mask literally seal them. What steam or warmth can do is make their contents softer and easier to clear, and what cleansing does is remove the debris that makes them look larger — but the pore itself is not a valve.
The size of your pores is influenced largely by factors like genetics and oil production, not by whichever product claims to shrink them.
Why they look bigger
Pores appear more prominent when they are congested with oil and debris, when skin loses some firmness over time, and in areas that naturally produce more oil. So while you cannot permanently change their true size, you can genuinely change how noticeable they are by keeping them clear and supporting overall skin health.
This is why congestion-focused care can make pores look smaller even though the underlying opening has not shrunk.
What actually helps their appearance
Keeping pores clear through gentle, consistent cleansing and appropriate exfoliation reduces the congestion that exaggerates them. Supporting the skin’s overall health and, over the long term, protecting it from sun damage that reduces firmness both help too. What does not help is aggressive scrubbing or "pore-shrinking" gimmicks that irritate.
Set realistic expectations: you are improving appearance, not resizing anatomy. Freed from the myths, the sensible steps are simple and genuinely effective.