Visible pores
Pore size is genetic and pores don't open or close — but their visibility responds to keeping them clear.
What has evidence, ranked
Sample products that cover it
From the demo catalog — ranked by their best evidence for pores.
La Roche-Posay
Pure Vitamin C10 Serum
Good evidence
Paula's Choice
10% Azelaic Acid Booster
Good evidence
Paula's Choice
Skin Perfecting 2% BHA Liquid Exfoliant
Good evidence
The Ordinary
Salicylic Acid 2% Solution
Good evidence
Honest note: nothing shrinks pores
Steam doesn't open them, cold water doesn't close them, and no product changes their structure. What trials show: clearing the plugs (BHA) makes them look smaller. That's the honest ceiling.
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