AHAs are short for alpha-hydroxy ... for beta-hydroxy acids. These chemical exfoliants break down oil and dead skin cells that clog pores. "The most common BHA is salicylic acid," says ...
Alpha-hydroxy acids have been used for ... effective as peeling agents and for rejuvenation. Glycolic acid and lactic acid are the -hydroxy acids most frequently used in cosmetics, although ...
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