Since I am not a fan of physical exfoliation, this product catched my attention right away, so I decided to give it a try. It works as described: you put it on your lips, wait a few seconds and it starts to bubble. The process is very fun and pleasant: no tingling, no uncomfortable sensation, no smell or bad taste at all. At the end, I definitely feel that my lips feel smoother and "refined" for lack of a better word to describe it. I haven't noticed any difference regarding hydration, but my lips were not dry nor cracked when I used it (I have used it twice so far with good results). I do recommend this!