Not sure which exfoliating acid is the best for you? Get this bundle for a significant discount! All three alpha hydroxy acid products are available in this set. You will get a 1 ounce bottle of glycolic acid serum, a 1 ounce bottle of lactic acid serum, and a 2 ounce bottle of smooth skin serum. Play around with these serums, making sure to use only one option at a time. Always use sunscreen when incorporating an alpha hydroxy acid into your skin care routine.