1 Answer 1


That website is wrong! Many papers proving that Benzoyl Peroxide IS an anti fungal:

That website ought to have written that benzoyl peroxide can't kill yeast associated with acne.

Either way, differences in cell structure explain the different abilities of an antimicrobial compound being effective against some, but not other, microbes Some antimicrobials target the

  • the replicative machinery of eukaryotes specifically,
  • peptidoglycan synthesis in bacteria,
  • chitin synthesis in yeast,
  • lipids, which make gram positive bacteria and some yeast resistant to it.

The acne-causing yeast have some morphological difference which makes them impervious to benzoyl peroxide. I would venture that some sort of difference in the cell wall structure protects this yeast from benzoyl peroxide?


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