Beta Hydroxy Acid

Unlike Alpha Hydroxy Acid (AHA), Beta Hydroxy Acid (BHA) is oil-soluble and can penetrate pores to clear up acne and help prevent future breakouts. The most common form of Beta Hydroxy Acid used in skin care products is Salicylic Acid which, in addition to helping clear problem skin, chemically exfoliates to help transform the look of rough skin and improve smoothness.

Illustration of Beta Hydroxy Acid, a Peter Thomas Roth skincare ingredient