I first read about this product on the Fifty Shades of Snail blog, so I ordered my first bottle from Amazon. I found it to be extremely gentle yet effective; this product (and its sister AHA) basically took me off the market for acids. In fact, it's so awesome that I decanted half of my bottle for several of my friends and family who I know were struggling with acne (the other half lasted me for a good few months because of the liquid texture; the product is very spreadable and you don't need to use a lot), and each one of them reported a significant improvement in their skin.

Cosrx since stepped down from Amazon, so I turned to Jolse to order 3 (!) more bottles of this for me and two of my friends. I'm still waiting for my shipment but will definitely buy this again, it's become HG status for me and a lot of people I introduced it to. Even if Amazon started carrying Cosrx again I would still stay with Jolse, because I can rely on the authenticity of the product and the website, and the store credit policy is great, it saves you a few bucks every time (even if it's just a fraction, these things stack up).