I use this 2 or 3 times a week when I'm not using BHA and this works really well in keeping your skin clear and bright. It helps to chemically exfoliate the dead skin cells and helps with keeping acne prone skin at bay. I must admit that the smell takes some time getting used to, and it might sting a bit if you just popped a pimple, but it works so well. I always use this at night and make sure to always wear sunscreen during the day. Using this consistently will get you results over time. I use this in conjunction with other COSRX products, which seems to improve my skin even more.