⑤251111 I think I've had seven bottles so far. It seems to be taking care of my pores, and while it may be due to my age, it seems to be more effective than Innisfree Retinol PDRN Advanced Serum for my skin condition. The problem with Innisfree Retinol PDRN Advanced Serum was the bonus cream I applied afterwards, which was a bit irritating and potentially problematic, so I thought it would be better to just use this. ④240407 I've been using it for a while now, and I think I've used about five bottles so far. I really feel it's effective on wrinkles around the eyes, nasolabial folds, and wrinkles. ③220817 I've given it two stars. I'm currently on my third bottle of the smaller one. I can definitely see improvement in my wrinkles and nasolabial folds, so I'll definitely buy it again. It's effective when applied after washing your face. It does improve wrinkles, but its pore-care effect may be lacking. Anyway, I want to keep using it. ②221002 It's advertised as being effective at improving wrinkles, and when I tried it on the area around my eyes where I have crepe-like wrinkles, it seemed to work quite well. It might take a while to improve nasolabial folds. It absorbs quickly after application, and the lotion I apply afterwards also seems to absorb easily, so I think it has a booster effect as well. If I'm happy with it once I've used it up, I'd like to buy it again. ①220921 I've often seen it advertised online, so I was intrigued. I looked it up here and it had pretty good reviews, so I bought the smaller one. It's supposed to be applied immediately after washing your face, so I'm not sure if it acts as a booster, but it's very moisturizing. It also seems to improve my skin condition, so I think it's effective.