I've become addicted to Predia and have tried many different products, and this one is my favorite, so I'm on my second bottle. The other day, after getting treatment at a dermatologist, my under-skin was extremely dry the next day, and I developed fine wrinkles that weren't there before. I was regretting not having it done, and then I noticed that I was using a generous amount of this serum every day, but this time I decided to stop wasting money and applied a generous amount around my eyes. After using it repeatedly, I realized that my skin was back to how it was before the treatment, and I was so surprised that the new wrinkles I had formed had disappeared! I was so impressed with Predia that I want to continue using it.