I used it for 2-3 years. It's an okay product. I liked that it left my skin soft, didn't cause any allergies, doesn't have a scent, and even though it has such a light feeling that you don't feel it, it does some work. Of course, it's not a miracle worker, but what product is? I used it in the morning and evening, all year round, and under sunscreen or makeup. I bought it for around 25 euros. The price has gone up and I don't think I'll buy it again.

I didn't use it for a long time to know if it's effective. What I know is that it finished quickly

Average, it does not provide shine and smoothness of wrinkles. A simple moisturizer can easily replace it. There are definitely much better serums available.