I’ve been using the COSRX Advanced Snail 96 Mucin Power Essence daily for over a month. First, if you’re worried about the whole snail thing, don’t – there’s no offensive smell or strange texture; it’s just a bit sticky when you first apply it. Dries very quickly, so smooth/pat it in fast.
It didn’t aggravate my combo oily, acne-prone, slightly sensitive skin. I also use this and has, one of which is prescription-strength retin-a at .25%, and haven’t had any problems. I mainly got this to reduce redness (pretty apparent when you’re as ghostly as I am) and help with a bit of flaking due to the aha use, and while it seems to have reduced redness slightly, it’s nothing to write home about. Overall though? Skin feels smoother, nicely moisturized, and no oilier than usual.
Worth the money I paid for it, certainly. STRONGLY advise against ordering from Rude Cosmetics (nothing but poor experiences. probably should expect it, given the name), as they will give you the runaround, may send expired products, overcharge by a ridiculous amount, and don’t even offer Amazon Prime.
Since this is an essence (and it has sodium hyaluronate = hyaluronic acid), use it after your toner, but before everything else, and it’ll help draw in whatever moisture (ie, water) you place on top of it (or even moisture in the air) further into your skin. If you don’t, you may find your skin feels a bit dry, as the sodium hyaluronate will actually draw moisture from your skin (hyaluronic acid can attract water both ways). When I use retin-a, I wait 30 minutes after applying it to give it time to work on its own as instructed, then carefully pat this in, otherwise, it can cause a bit of pilling.