If you’ve ever used a spot treatment or cleanser for acne, chances are salicylic acid was involved. This powerhouse ingredient belongs to the BHA family, which makes it oil-soluble. Why does that matter? Unlike water-soluble exfoliants (like most AHAs), salicylic acid can dive deep into your pores, cutting through oil and loosening up the gunk that causes breakouts in the first place.
Originally derived from willow bark, salicylic acid today is mostly created synthetically—either through biosynthesis or commercial production—to ensure consistency and effectiveness.
