I love this AHA! It's the only thing that cleared my face of whiteheads and cystic acne, and even hormonal acne which I was not expecting. It does have kind of a funny smell after I apply it but that goes away and I don't mind because it works really well. It didn't really lighten up any pigmentation I had but it definitely cleared my acne and I've been pretty much acne free since I started using this 3 years ago.

PROS: Effectively clears your whiteheads and removes your sebum. It purifies and tones up your skin leaving is clearer and more bright. It also controls excessive sebum and achieves excellent moisture retention in combination with a hyaluronic acid. Lastly, it works well for sun damaged skin. Also, it is good for spots, dryness, and trouble.

CONS: It can cause some purging. And can burn your skin if you use it with other actives and acids like Vitamin C and BHA. Also, it will make your skin vulnerable to the sun so NEVER FORGET to use a sunscreen the next morning.

FULL REVIEW: http://stylevanity.com/2018/01/cosrx-aha-7-whitehead-power-liquid-review.html