Alpha-hydroxy acids include glycolic, lactic, tartaric, malic, and citric acids ... follow the instructions on the package. Salicylic acid exfoliates skin, unclogs pores and can improve its ...

But unlike some of the other AHAs in the family (looking @ u rn, glycolic acid), citric acid is gentler on the skin, making it a great option for people with sensitive skin or those who are beginners ...