BHAs (Beta Hydroxy Acids)
Salicylic Acid is a Beta Hydroxy Acid (BHA) and is commonly used for congested/acne prone skin concerns. It clears p.acnes infection by unclogging pores, neutralising the bacteria, increasing cell turnover and reducing inflammation. It is a lipophilic compound which means it is oil soluble and removes intercellular lipids that link the surface layer skin cells.
Originally derived from the same substance used in aspirin or Willow Bark.
Percentage in Skincare:
0.5-2% is common in over the counter products.
Professional peels are available at 10%-30% with pH levels ranging from 2.1-2.3.
Avoid during pregnancy.