This targeted, triple-action treatment gel is formulated with an Alpha Hydroxy Acid (AHA) blend of Acetyl Mandelic Acid, Citric Acid and Tartaric Acid, combined with Salicylic Acid and ProVitamin A, to exfoliate the build-up of dead skin cells and help keep pores clear of impurities. How to use :Apply to affected areas twice daily. It is recommended that prior to exposure to the sun, users cover areas where AHAs have been applied with sunscreen.