BHAs are oil soluble, so it’s most often preferred for combination to oily skin prone to bumps, clogs, blemishes, and enlarged pores. BHA also has natural skin-calming properties, so it’s gentle enough for skin that's sensitive or prone to redness or rosacea. This well-rounded, gentle ingredient is even suitable for bumpy skin disposed to milia. This daily BHA serum works on the skin’s surface and deep inside the pore to “unglue” the bonds holding dull, dead skin on the surface.