I was given a small sample and asked to use this for a week and evaluate the differences I could see in those days. I expected to see nothing in a week, most products take upwards of a month anyway to even begin to work, but this was incredible. The morning puffiness vanished the first day, by the third my eyes looked different. I knew if I saw less puffiness and less lines, everyone else did too. Finally an eye care regimen I can stick with because of the changes I can see.