Got this serum yesterday and I must admit it is great. Obviously I will need to use it for good few weeks to see result but so far I'm impressed. I only need a very small amount to put on my face. And my skin feels tighter and brighter. It's a lot more radiant and glow just after use. So I'm sure with longer use it will be great improvement. I will update my review in a month or so after longer use of product