An important word to find on your products is ‘non-comedogenic’.
This means non-pore clogging.
This word isn’t perfect.
To make this claim, testing is performed over 21 days with cyanoacrylate biopsies before and after counting the number of open comedones (blackheads) before and after use of the product. If there is no increase in open comedones then it’s labeled noncomedogenic. This testing does not consider closed comedones or whiteheads, pus bumps or inflammation.