UPDATE/EDIT:Below you will see my honest review on my initial experience with the Cosrx snail mucin & niacinimide 5% serum. That review is based off of my original order that I received November 27, 2023. That experience was very disappointing bc I REALLY wanted to love this product and have a great experience as so many others were raving online about. My sad, aging, dehydrated skin desperately needed to see some improvement, but unfortunately it didn’t happen, so this is why my original review consisted of 3 lonely stars and long, negative (but honest) review of the product and my personal experience with it.We’ll fast forward to February 16, 2024. I was damned and determined to understand why and how this product was such a “miracle” for everyone else’s skin, but mine. So after doing some research, I read on multiple beauty and dermatology websites that niacinamide (which is in this version) can’t be used with vit c facial products. I’m no beauty product expert, so I honestly had no clue about this. I’m just a 47 yr old woman struggling desperately to fight the signs of aging. I’m constantly trying new products and treatments with hopes of reversing some of the unsightly damage that I caused to my skin from the MANY hours spent laying out in the sun while covered in baby oil when I was in my teens and 20’s trying to get a dark tan or hoping to at least slow some of the signs of aging down a little.So I said all that to say that once I read this info about not using the niacinamide in conjunction with vit c, I decided to try the Cosrx Snail Mucin without the niacinamide and HOLY SMOKES…I FREAKIN LOVE IT!!! My skin is already thanking me. 🤪 My face looks so hydrated and I’m even seeing some improvement in texture and lines.NOW I see what all the hype is about with snail mucin and will continue to use it. I’ll also make sure I research product compatibility before trying new skin care products from now on bc if I wouldn’t have after my initial experience, then I would’ve totally missed out on the benefits I’m seeing now from the plain Cosrx Snail Mucin.I really hate leaving reviews that aren’t great, but I feel it’s important to be honest, so here it goes. 😔I was so excited and couldn’t wait for my Cosrx Snail Mucin to arrive. I just knew it was going to be amazing bc hey after all, everyone on Tik Tok said so. 🤦‍♀️ Unfortunately this stuff dries my already dry skin out REALLY bad. I already have dry skin and battle with the fine lines from aging, but the Cosrx Advanced Snail Radiance made it worse. Even though I still continued to moisturize heavily as I always have. On my second morning of using it I noticed some slight additional dryness and the skin on my forehead and around my nose was noticeably cracking. Not deep cracking, but superficial cracking that was obvious. It wasn’t major, but it was definitely noticeable. Especially after applying my foundation. I continued to use it though, bc I know you can’t get the full effects from any product without giving it time and also bc I know my skin is already dry and difficult, so I figured maybe I just needed to give it time and let my skin get adjusted to the new product. Not to mention i REALLY wanted to love this product. 😢 Well by day four my whole face was flakey and peeling. 🤦‍♀️ Me wanting so bad to love this product I still didn’t throw in the towel and give up. I continued on and tried so hard to make it work. I have now been using it daily for approximately 2 weeks and it’s just not vibing with my skin. Unfortunately I haven’t seen any improvement. It just really sucks bc now my skin look worse than ever with the dryness and that was the reason I bought it…to help with the dryness and to aid in plumping to hopefully decrease some of the visible fine lines.Maybe it’s just my skin, so I really hate to only give it 3 stars, but I feel like it would be misleading and not a completely honest review if I gave more than 3 stars.I say if you have normal or oily skin, then give it a try and hopefully it will work for you like it has for so many others, but if you have dry or sensitive skin, then I wouldn’t recommend.