Infused with glycolic acid and natural AHA from apple water, the CosRX AHA 7 Whitehead Power Liquid works to prevent dead skin cells from falling into pores, therefore lessening the appearance of pimples, whiteheads, and blackheads. Since AHA is also known for promoting cellular turnover, this product also helps to fade pigmentation faster. Recommended for all skin types. Review(s): “I’m acne-prone anyways, but after trying Stridex (BHA) , my skin was purging like crazy and and I developed even worse cystic acne and closed comedones everywhere. So I researched and found maybe an AHA would help out with clearing what was brought up to the surface better. The first week I used it everyday and that was terrible, as I realized I had begun to over exfoliate and my skin wasn’t getting better. So take caution and start slow. Now, I use CosRX AHA 7 Whitehead Power Liquid 2-3 times a week depending on whether I have time or whether my skin just looks like its in bad condition. After a good two months of trying it, I’ve noticed CC’s coming up faster, whiteheads disappearing, and a smoother skin surface. My redness from my skin is less apparent as well. It’s a slow process, but with how little I’ve used, this product is a wonderful staple in my routine and will possibly last me a good year!” – Sabrina (from us.memebox.com) Size: 100 mL To use: To be used after cleansing and after your pH-adjusting toner. Pump out an appropriate amount of product and apply to target areas using hands or a cotton pad. Let product work for 15-20 minutes. Proceed with the rest of your routine. Note: Begin by using the product only once a week. Once skin has adjusted and shows no signs of irritation, gradually increase frequency of use to two or three times a week. In daytime, remember to put on sunscreen!