I have been using SK2 for few years. It was great because the first 3 days I used SK2, my skin texture improved significantly. My skin was plumped within 3 days. But SK2 is expensive, so I bought this product as I heard it is a dupe. But after 2 weeks of using this, it is not the same as SK2. I don't see any significant changes, but overall it is not bad as my skin just maintain as it is. But just before this, I bought Neogen Ferment Micro Essense and I felt that Neogen is slightly better than this product as I do felt my skin was soft using Neogen.