Hydroxy acids are substances belonging to the chemical exfoliating agents or skin they have a wide spectrum of activities including regulate cell renewal increase the effectiveness of other cosmetic formulations improve the production of collagen and elastin anti bacterial function help in removing stains and shallow acne scars and fine wrinkles indications for treatment keratosis skin discoloration oily skin seborrheic acne vulgaris scars the so called 34fish scales34 anti